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Finding the Fourth Proportional to 19,373,644.80, 29,123,452.80 and 13,732,934.40

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Solution

The fourth proportional to 19,373,644.80, 29,123,452.80 and 13,732,934.40 is: 20,644,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,373,644.80 : 29,123,452.80 = 13,732,934.40 : x
  2. Step 2: Convert to fraction form
    19,373,644.80/29,123,452.80 = 13,732,934.40/x
  3. Step 3: Cross multiply
    19,373,644.80x = 29,123,452.80 × 13,732,934.40
  4. Step 4: Simplify right side
    19,373,644.80x = 399,950,466,803,896.31
  5. Step 5: Solve for x
    x = 399,950,466,803,896.31/19,373,644.80
  6. Step 6: Final answer
    x = 20,644,048.70

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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.