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Finding the Fourth Proportional to 63,034.70, 86,987.87 and 37,884.20

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Solution

The fourth proportional to 63,034.70, 86,987.87 and 37,884.20 is: 52,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,034.70 : 86,987.87 = 37,884.20 : x
  2. Step 2: Convert to fraction form
    63,034.70/86,987.87 = 37,884.20/x
  3. Step 3: Cross multiply
    63,034.70x = 86,987.87 × 37,884.20
  4. Step 4: Simplify right side
    63,034.70x = 3,295,465,240.29
  5. Step 5: Solve for x
    x = 3,295,465,240.29/63,034.70
  6. Step 6: Final answer
    x = 52,280.18

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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.