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Finding the Fourth Proportional to 25,755.59, 38,625.01 and 8,221.25

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Solution

The fourth proportional to 25,755.59, 38,625.01 and 8,221.25 is: 12,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,755.59 : 38,625.01 = 8,221.25 : x
  2. Step 2: Convert to fraction form
    25,755.59/38,625.01 = 8,221.25/x
  3. Step 3: Cross multiply
    25,755.59x = 38,625.01 × 8,221.25
  4. Step 4: Simplify right side
    25,755.59x = 317,545,863.46
  5. Step 5: Solve for x
    x = 317,545,863.46/25,755.59
  6. Step 6: Final answer
    x = 12,329.20

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1.5x scale

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.