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Finding the Fourth Proportional to 8,593.79, 12,891.92 and 3,258.93

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Solution

The fourth proportional to 8,593.79, 12,891.92 and 3,258.93 is: 4,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.79 : 12,891.92 = 3,258.93 : x
  2. Step 2: Convert to fraction form
    8,593.79/12,891.92 = 3,258.93/x
  3. Step 3: Cross multiply
    8,593.79x = 12,891.92 × 3,258.93
  4. Step 4: Simplify right side
    8,593.79x = 42,013,869.80
  5. Step 5: Solve for x
    x = 42,013,869.80/8,593.79
  6. Step 6: Final answer
    x = 4,888.87

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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.