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Finding the Fourth Proportional to 18,471.98, 25,489.01 and 10,514.36

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Solution

The fourth proportional to 18,471.98, 25,489.01 and 10,514.36 is: 14,508.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.98 : 25,489.01 = 10,514.36 : x
  2. Step 2: Convert to fraction form
    18,471.98/25,489.01 = 10,514.36/x
  3. Step 3: Cross multiply
    18,471.98x = 25,489.01 × 10,514.36
  4. Step 4: Simplify right side
    18,471.98x = 268,000,627.18
  5. Step 5: Solve for x
    x = 268,000,627.18/18,471.98
  6. Step 6: Final answer
    x = 14,508.49

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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.