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Finding the Fourth Proportional to 25,862.02, 38,799.12 and 8,331.22

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Solution

The fourth proportional to 25,862.02, 38,799.12 and 8,331.22 is: 12,498.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,862.02 : 38,799.12 = 8,331.22 : x
  2. Step 2: Convert to fraction form
    25,862.02/38,799.12 = 8,331.22/x
  3. Step 3: Cross multiply
    25,862.02x = 38,799.12 × 8,331.22
  4. Step 4: Simplify right side
    25,862.02x = 323,244,004.53
  5. Step 5: Solve for x
    x = 323,244,004.53/25,862.02
  6. Step 6: Final answer
    x = 12,498.79

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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.