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Finding the Fourth Proportional to 7,209,882.28, 9,948,957.06 and 4,308,695.56

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Solution

The fourth proportional to 7,209,882.28, 9,948,957.06 and 4,308,695.56 is: 5,945,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209,882.28 : 9,948,957.06 = 4,308,695.56 : x
  2. Step 2: Convert to fraction form
    7,209,882.28/9,948,957.06 = 4,308,695.56/x
  3. Step 3: Cross multiply
    7,209,882.28x = 9,948,957.06 × 4,308,695.56
  4. Step 4: Simplify right side
    7,209,882.28x = 42,867,027,111,052.65
  5. Step 5: Solve for x
    x = 42,867,027,111,052.65/7,209,882.28
  6. Step 6: Final answer
    x = 5,945,593.21

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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.