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Finding the Fourth Proportional to 18,458.62, 25,472.01 and 10,500.10

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Solution

The fourth proportional to 18,458.62, 25,472.01 and 10,500.10 is: 14,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.62 : 25,472.01 = 10,500.10 : x
  2. Step 2: Convert to fraction form
    18,458.62/25,472.01 = 10,500.10/x
  3. Step 3: Cross multiply
    18,458.62x = 25,472.01 × 10,500.10
  4. Step 4: Simplify right side
    18,458.62x = 267,458,652.20
  5. Step 5: Solve for x
    x = 267,458,652.20/18,458.62
  6. Step 6: Final answer
    x = 14,489.63

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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.