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Finding the Fourth Proportional to 89,380.85, 134,071.13 and 22,820.99

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Solution

The fourth proportional to 89,380.85, 134,071.13 and 22,820.99 is: 34,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,380.85 : 134,071.13 = 22,820.99 : x
  2. Step 2: Convert to fraction form
    89,380.85/134,071.13 = 22,820.99/x
  3. Step 3: Cross multiply
    89,380.85x = 134,071.13 × 22,820.99
  4. Step 4: Simplify right side
    89,380.85x = 3,059,635,132.56
  5. Step 5: Solve for x
    x = 3,059,635,132.56/89,380.85
  6. Step 6: Final answer
    x = 34,231.44

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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.