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Finding the Fourth Proportional to 63,695.28, 87,904.44 and 35,407.92

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Solution

The fourth proportional to 63,695.28, 87,904.44 and 35,407.92 is: 48,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,695.28 : 87,904.44 = 35,407.92 : x
  2. Step 2: Convert to fraction form
    63,695.28/87,904.44 = 35,407.92/x
  3. Step 3: Cross multiply
    63,695.28x = 87,904.44 × 35,407.92
  4. Step 4: Simplify right side
    63,695.28x = 3,112,513,379.16
  5. Step 5: Solve for x
    x = 3,112,513,379.16/63,695.28
  6. Step 6: Final answer
    x = 48,865.68

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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.