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Finding the Fourth Proportional to 63,839.39, 88,091.87 and 36,990.54

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Solution

The fourth proportional to 63,839.39, 88,091.87 and 36,990.54 is: 51,043.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,839.39 : 88,091.87 = 36,990.54 : x
  2. Step 2: Convert to fraction form
    63,839.39/88,091.87 = 36,990.54/x
  3. Step 3: Cross multiply
    63,839.39x = 88,091.87 × 36,990.54
  4. Step 4: Simplify right side
    63,839.39x = 3,258,565,655.96
  5. Step 5: Solve for x
    x = 3,258,565,655.96/63,839.39
  6. Step 6: Final answer
    x = 51,043.19

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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.