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Finding the Fourth Proportional to 18,208,472.24, 25,127,398.40 and 9,948,357.11

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Solution

The fourth proportional to 18,208,472.24, 25,127,398.40 and 9,948,357.11 is: 13,728,572.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208,472.24 : 25,127,398.40 = 9,948,357.11 : x
  2. Step 2: Convert to fraction form
    18,208,472.24/25,127,398.40 = 9,948,357.11/x
  3. Step 3: Cross multiply
    18,208,472.24x = 25,127,398.40 × 9,948,357.11
  4. Step 4: Simplify right side
    18,208,472.24x = 249,976,332,402,805.62
  5. Step 5: Solve for x
    x = 249,976,332,402,805.62/18,208,472.24
  6. Step 6: Final answer
    x = 13,728,572.57

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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.