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Finding the Fourth Proportional to 16,402,965.90, 24,604,448.85 and 15,656,469.90

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Solution

The fourth proportional to 16,402,965.90, 24,604,448.85 and 15,656,469.90 is: 23,484,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,402,965.90 : 24,604,448.85 = 15,656,469.90 : x
  2. Step 2: Convert to fraction form
    16,402,965.90/24,604,448.85 = 15,656,469.90/x
  3. Step 3: Cross multiply
    16,402,965.90x = 24,604,448.85 × 15,656,469.90
  4. Step 4: Simplify right side
    16,402,965.90x = 385,218,812,826,114.62
  5. Step 5: Solve for x
    x = 385,218,812,826,114.62/16,402,965.90
  6. Step 6: Final answer
    x = 23,484,704.85

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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.