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Finding the Fourth Proportional to 63,642.36, 87,865.92 and 41,020.32

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Solution

The fourth proportional to 63,642.36, 87,865.92 and 41,020.32 is: 56,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,642.36 : 87,865.92 = 41,020.32 : x
  2. Step 2: Convert to fraction form
    63,642.36/87,865.92 = 41,020.32/x
  3. Step 3: Cross multiply
    63,642.36x = 87,865.92 × 41,020.32
  4. Step 4: Simplify right side
    63,642.36x = 3,604,288,155.49
  5. Step 5: Solve for x
    x = 3,604,288,155.49/63,642.36
  6. Step 6: Final answer
    x = 56,633.48

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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.