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Finding the Fourth Proportional to 90,452.70, 135,685.53 and 23,892.17

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Solution

The fourth proportional to 90,452.70, 135,685.53 and 23,892.17 is: 35,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,452.70 : 135,685.53 = 23,892.17 : x
  2. Step 2: Convert to fraction form
    90,452.70/135,685.53 = 23,892.17/x
  3. Step 3: Cross multiply
    90,452.70x = 135,685.53 × 23,892.17
  4. Step 4: Simplify right side
    90,452.70x = 3,241,821,749.30
  5. Step 5: Solve for x
    x = 3,241,821,749.30/90,452.70
  6. Step 6: Final answer
    x = 35,839.97

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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.