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Finding the Fourth Proportional to 61,218.87, 91,863.75 and 25,677.02

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Solution

The fourth proportional to 61,218.87, 91,863.75 and 25,677.02 is: 38,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,218.87 : 91,863.75 = 25,677.02 : x
  2. Step 2: Convert to fraction form
    61,218.87/91,863.75 = 25,677.02/x
  3. Step 3: Cross multiply
    61,218.87x = 91,863.75 × 25,677.02
  4. Step 4: Simplify right side
    61,218.87x = 2,358,787,671.97
  5. Step 5: Solve for x
    x = 2,358,787,671.97/61,218.87
  6. Step 6: Final answer
    x = 38,530.40

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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.