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Finding the Fourth Proportional to 7,921,152,006.08, 11,881,728,009.11 and 7,921,152,006.08

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Solution

The fourth proportional to 7,921,152,006.08, 11,881,728,009.11 and 7,921,152,006.08 is: 11,881,728,009.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921,152,006.08 : 11,881,728,009.11 = 7,921,152,006.08 : x
  2. Step 2: Convert to fraction form
    7,921,152,006.08/11,881,728,009.11 = 7,921,152,006.08/x
  3. Step 3: Cross multiply
    7,921,152,006.08x = 11,881,728,009.11 × 7,921,152,006.08
  4. Step 4: Simplify right side
    7,921,152,006.08x = 94,116,973,655,015,030,784
  5. Step 5: Solve for x
    x = 94,116,973,655,015,030,784/7,921,152,006.08
  6. Step 6: Final answer
    x = 11,881,728,009.11

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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.