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Finding the Fourth Proportional to 52,540.72, 78,807.87 and 17,001.28

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Solution

The fourth proportional to 52,540.72, 78,807.87 and 17,001.28 is: 25,500.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,540.72 : 78,807.87 = 17,001.28 : x
  2. Step 2: Convert to fraction form
    52,540.72/78,807.87 = 17,001.28/x
  3. Step 3: Cross multiply
    52,540.72x = 78,807.87 × 17,001.28
  4. Step 4: Simplify right side
    52,540.72x = 1,339,834,270.03
  5. Step 5: Solve for x
    x = 1,339,834,270.03/52,540.72
  6. Step 6: Final answer
    x = 25,500.88

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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.