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Finding the Fourth Proportional to 63,540.80, 87,687.84 and 35,247.68

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Solution

The fourth proportional to 63,540.80, 87,687.84 and 35,247.68 is: 48,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,540.80 : 87,687.84 = 35,247.68 : x
  2. Step 2: Convert to fraction form
    63,540.80/87,687.84 = 35,247.68/x
  3. Step 3: Cross multiply
    63,540.80x = 87,687.84 × 35,247.68
  4. Step 4: Simplify right side
    63,540.80x = 3,090,792,924.21
  5. Step 5: Solve for x
    x = 3,090,792,924.21/63,540.80
  6. Step 6: Final answer
    x = 48,642.65

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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.