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Finding the Fourth Proportional to 73,899.59, 110,865.78 and 21,304.97

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Solution

The fourth proportional to 73,899.59, 110,865.78 and 21,304.97 is: 31,962.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,899.59 : 110,865.78 = 21,304.97 : x
  2. Step 2: Convert to fraction form
    73,899.59/110,865.78 = 21,304.97/x
  3. Step 3: Cross multiply
    73,899.59x = 110,865.78 × 21,304.97
  4. Step 4: Simplify right side
    73,899.59x = 2,361,992,116.93
  5. Step 5: Solve for x
    x = 2,361,992,116.93/73,899.59
  6. Step 6: Final answer
    x = 31,962.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.