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Finding the Fourth Proportional to 60,587.72, 90,889.16 and 20,062.88

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Solution

The fourth proportional to 60,587.72, 90,889.16 and 20,062.88 is: 30,096.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,587.72 : 90,889.16 = 20,062.88 : x
  2. Step 2: Convert to fraction form
    60,587.72/90,889.16 = 20,062.88/x
  3. Step 3: Cross multiply
    60,587.72x = 90,889.16 × 20,062.88
  4. Step 4: Simplify right side
    60,587.72x = 1,823,498,310.38
  5. Step 5: Solve for x
    x = 1,823,498,310.38/60,587.72
  6. Step 6: Final answer
    x = 30,096.83

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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.