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Finding the Fourth Proportional to 63,588.80, 87,739.80 and 40,892.24

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Solution

The fourth proportional to 63,588.80, 87,739.80 and 40,892.24 is: 56,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,588.80 : 87,739.80 = 40,892.24 : x
  2. Step 2: Convert to fraction form
    63,588.80/87,739.80 = 40,892.24/x
  3. Step 3: Cross multiply
    63,588.80x = 87,739.80 × 40,892.24
  4. Step 4: Simplify right side
    63,588.80x = 3,587,876,959.15
  5. Step 5: Solve for x
    x = 3,587,876,959.15/63,588.80
  6. Step 6: Final answer
    x = 56,423.10

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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.