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Finding the Fourth Proportional to 63,642.30, 87,835.95 and 45,796.38

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Solution

The fourth proportional to 63,642.30, 87,835.95 and 45,796.38 is: 63,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,642.30 : 87,835.95 = 45,796.38 : x
  2. Step 2: Convert to fraction form
    63,642.30/87,835.95 = 45,796.38/x
  3. Step 3: Cross multiply
    63,642.30x = 87,835.95 × 45,796.38
  4. Step 4: Simplify right side
    63,642.30x = 4,022,568,543.86
  5. Step 5: Solve for x
    x = 4,022,568,543.86/63,642.30
  6. Step 6: Final answer
    x = 63,205.90

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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.