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Finding the Fourth Proportional to 18,461.62, 25,472.12 and 10,502.56

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Solution

The fourth proportional to 18,461.62, 25,472.12 and 10,502.56 is: 14,490.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.62 : 25,472.12 = 10,502.56 : x
  2. Step 2: Convert to fraction form
    18,461.62/25,472.12 = 10,502.56/x
  3. Step 3: Cross multiply
    18,461.62x = 25,472.12 × 10,502.56
  4. Step 4: Simplify right side
    18,461.62x = 267,522,468.63
  5. Step 5: Solve for x
    x = 267,522,468.63/18,461.62
  6. Step 6: Final answer
    x = 14,490.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.