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Finding the Fourth Proportional to 25,691.49, 35,318.25 and 22,093.20

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Solution

The fourth proportional to 25,691.49, 35,318.25 and 22,093.20 is: 30,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.49 : 35,318.25 = 22,093.20 : x
  2. Step 2: Convert to fraction form
    25,691.49/35,318.25 = 22,093.20/x
  3. Step 3: Cross multiply
    25,691.49x = 35,318.25 × 22,093.20
  4. Step 4: Simplify right side
    25,691.49x = 780,293,160.90
  5. Step 5: Solve for x
    x = 780,293,160.90/25,691.49
  6. Step 6: Final answer
    x = 30,371.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.