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Finding the Fourth Proportional to 63,642.32, 87,829.08 and 35,350.64

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Solution

The fourth proportional to 63,642.32, 87,829.08 and 35,350.64 is: 48,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,642.32 : 87,829.08 = 35,350.64 : x
  2. Step 2: Convert to fraction form
    63,642.32/87,829.08 = 35,350.64/x
  3. Step 3: Cross multiply
    63,642.32x = 87,829.08 × 35,350.64
  4. Step 4: Simplify right side
    63,642.32x = 3,104,814,188.61
  5. Step 5: Solve for x
    x = 3,104,814,188.61/63,642.32
  6. Step 6: Final answer
    x = 48,785.37

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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.