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Finding the Fourth Proportional to 14,916.80, 22,375.20 and 14,502.08

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Solution

The fourth proportional to 14,916.80, 22,375.20 and 14,502.08 is: 21,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,916.80 : 22,375.20 = 14,502.08 : x
  2. Step 2: Convert to fraction form
    14,916.80/22,375.20 = 14,502.08/x
  3. Step 3: Cross multiply
    14,916.80x = 22,375.20 × 14,502.08
  4. Step 4: Simplify right side
    14,916.80x = 324,486,940.42
  5. Step 5: Solve for x
    x = 324,486,940.42/14,916.80
  6. Step 6: Final answer
    x = 21,753.12

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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.