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Finding the Fourth Proportional to 9,886,662.70, 14,824,587.84 and 7,850,403.56

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Solution

The fourth proportional to 9,886,662.70, 14,824,587.84 and 7,850,403.56 is: 11,771,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886,662.70 : 14,824,587.84 = 7,850,403.56 : x
  2. Step 2: Convert to fraction form
    9,886,662.70/14,824,587.84 = 7,850,403.56/x
  3. Step 3: Cross multiply
    9,886,662.70x = 14,824,587.84 × 7,850,403.56
  4. Step 4: Simplify right side
    9,886,662.70x = 116,378,997,154,668.70
  5. Step 5: Solve for x
    x = 116,378,997,154,668.70/9,886,662.70
  6. Step 6: Final answer
    x = 11,771,312.59

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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.