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Finding the Fourth Proportional to 16,874.70, 25,312.05 and 14,979.30

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Solution

The fourth proportional to 16,874.70, 25,312.05 and 14,979.30 is: 22,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,874.70 : 25,312.05 = 14,979.30 : x
  2. Step 2: Convert to fraction form
    16,874.70/25,312.05 = 14,979.30/x
  3. Step 3: Cross multiply
    16,874.70x = 25,312.05 × 14,979.30
  4. Step 4: Simplify right side
    16,874.70x = 379,156,790.57
  5. Step 5: Solve for x
    x = 379,156,790.57/16,874.70
  6. Step 6: Final answer
    x = 22,468.95

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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.