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Finding the Fourth Proportional to 7,244,312.52, 9,996,668.01 and 3,981,057.15

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Solution

The fourth proportional to 7,244,312.52, 9,996,668.01 and 3,981,057.15 is: 5,493,593.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244,312.52 : 9,996,668.01 = 3,981,057.15 : x
  2. Step 2: Convert to fraction form
    7,244,312.52/9,996,668.01 = 3,981,057.15/x
  3. Step 3: Cross multiply
    7,244,312.52x = 9,996,668.01 × 3,981,057.15
  4. Step 4: Simplify right side
    7,244,312.52x = 39,797,306,657,386.77
  5. Step 5: Solve for x
    x = 39,797,306,657,386.77/7,244,312.52
  6. Step 6: Final answer
    x = 5,493,593.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.