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Finding the Fourth Proportional to 63,398.64, 87,489.24 and 36,541.20

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Solution

The fourth proportional to 63,398.64, 87,489.24 and 36,541.20 is: 50,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,398.64 : 87,489.24 = 36,541.20 : x
  2. Step 2: Convert to fraction form
    63,398.64/87,489.24 = 36,541.20/x
  3. Step 3: Cross multiply
    63,398.64x = 87,489.24 × 36,541.20
  4. Step 4: Simplify right side
    63,398.64x = 3,196,961,816.69
  5. Step 5: Solve for x
    x = 3,196,961,816.69/63,398.64
  6. Step 6: Final answer
    x = 50,426.35

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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.