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Finding the Fourth Proportional to 84,799.71, 127,204.02 and 25,633.87

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Solution

The fourth proportional to 84,799.71, 127,204.02 and 25,633.87 is: 38,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,799.71 : 127,204.02 = 25,633.87 : x
  2. Step 2: Convert to fraction form
    84,799.71/127,204.02 = 25,633.87/x
  3. Step 3: Cross multiply
    84,799.71x = 127,204.02 × 25,633.87
  4. Step 4: Simplify right side
    84,799.71x = 3,260,730,994.15
  5. Step 5: Solve for x
    x = 3,260,730,994.15/84,799.71
  6. Step 6: Final answer
    x = 38,452.15

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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.