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Finding the Fourth Proportional to 8,666.54, 13,001.42 and 3,472.82

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Solution

The fourth proportional to 8,666.54, 13,001.42 and 3,472.82 is: 5,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.54 : 13,001.42 = 3,472.82 : x
  2. Step 2: Convert to fraction form
    8,666.54/13,001.42 = 3,472.82/x
  3. Step 3: Cross multiply
    8,666.54x = 13,001.42 × 3,472.82
  4. Step 4: Simplify right side
    8,666.54x = 45,151,535.08
  5. Step 5: Solve for x
    x = 45,151,535.08/8,666.54
  6. Step 6: Final answer
    x = 5,209.87

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1.5x scale

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.