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Finding the Fourth Proportional to 16,607,712.80, 24,915,505.80 and 8,521,936.40

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Solution

The fourth proportional to 16,607,712.80, 24,915,505.80 and 8,521,936.40 is: 12,784,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,607,712.80 : 24,915,505.80 = 8,521,936.40 : x
  2. Step 2: Convert to fraction form
    16,607,712.80/24,915,505.80 = 8,521,936.40/x
  3. Step 3: Cross multiply
    16,607,712.80x = 24,915,505.80 × 8,521,936.40
  4. Step 4: Simplify right side
    16,607,712.80x = 212,328,355,801,431.12
  5. Step 5: Solve for x
    x = 212,328,355,801,431.12/16,607,712.80
  6. Step 6: Final answer
    x = 12,784,924.59

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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.