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Finding the Fourth Proportional to 13,712,472.11, 20,575,448.06 and 5,514,787.09

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Solution

The fourth proportional to 13,712,472.11, 20,575,448.06 and 5,514,787.09 is: 8,274,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712,472.11 : 20,575,448.06 = 5,514,787.09 : x
  2. Step 2: Convert to fraction form
    13,712,472.11/20,575,448.06 = 5,514,787.09/x
  3. Step 3: Cross multiply
    13,712,472.11x = 20,575,448.06 × 5,514,787.09
  4. Step 4: Simplify right side
    13,712,472.11x = 113,469,215,332,253.53
  5. Step 5: Solve for x
    x = 113,469,215,332,253.53/13,712,472.11
  6. Step 6: Final answer
    x = 8,274,891.24

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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.