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Finding the Fourth Proportional to 18,508.68, 25,542.72 and 10,552.20

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Solution

The fourth proportional to 18,508.68, 25,542.72 and 10,552.20 is: 14,562.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.68 : 25,542.72 = 10,552.20 : x
  2. Step 2: Convert to fraction form
    18,508.68/25,542.72 = 10,552.20/x
  3. Step 3: Cross multiply
    18,508.68x = 25,542.72 × 10,552.20
  4. Step 4: Simplify right side
    18,508.68x = 269,531,889.98
  5. Step 5: Solve for x
    x = 269,531,889.98/18,508.68
  6. Step 6: Final answer
    x = 14,562.46

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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.