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Finding the Fourth Proportional to 89,059.74, 133,589.88 and 21,591.51

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Solution

The fourth proportional to 89,059.74, 133,589.88 and 21,591.51 is: 32,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,059.74 : 133,589.88 = 21,591.51 : x
  2. Step 2: Convert to fraction form
    89,059.74/133,589.88 = 21,591.51/x
  3. Step 3: Cross multiply
    89,059.74x = 133,589.88 × 21,591.51
  4. Step 4: Simplify right side
    89,059.74x = 2,884,407,229.92
  5. Step 5: Solve for x
    x = 2,884,407,229.92/89,059.74
  6. Step 6: Final answer
    x = 32,387.33

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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.