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Finding the Fourth Proportional to 7,921,152,003.08, 11,881,728,004.62 and 7,921,152,003.08

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Solution

The fourth proportional to 7,921,152,003.08, 11,881,728,004.62 and 7,921,152,003.08 is: 11,881,728,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921,152,003.08 : 11,881,728,004.62 = 7,921,152,003.08 : x
  2. Step 2: Convert to fraction form
    7,921,152,003.08/11,881,728,004.62 = 7,921,152,003.08/x
  3. Step 3: Cross multiply
    7,921,152,003.08x = 11,881,728,004.62 × 7,921,152,003.08
  4. Step 4: Simplify right side
    7,921,152,003.08x = 94,116,973,583,788,048,384
  5. Step 5: Solve for x
    x = 94,116,973,583,788,048,384/7,921,152,003.08
  6. Step 6: Final answer
    x = 11,881,728,004.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.