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Finding the Fourth Proportional to 63,908.38, 88,156.92 and 39,993.54

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Solution

The fourth proportional to 63,908.38, 88,156.92 and 39,993.54 is: 55,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,908.38 : 88,156.92 = 39,993.54 : x
  2. Step 2: Convert to fraction form
    63,908.38/88,156.92 = 39,993.54/x
  3. Step 3: Cross multiply
    63,908.38x = 88,156.92 × 39,993.54
  4. Step 4: Simplify right side
    63,908.38x = 3,525,707,306.30
  5. Step 5: Solve for x
    x = 3,525,707,306.30/63,908.38
  6. Step 6: Final answer
    x = 55,168.15

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1.5x scale

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.