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Finding the Fourth Proportional to 71,542.46, 107,314.43 and 21,622.97

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Solution

The fourth proportional to 71,542.46, 107,314.43 and 21,622.97 is: 32,434.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,542.46 : 107,314.43 = 21,622.97 : x
  2. Step 2: Convert to fraction form
    71,542.46/107,314.43 = 21,622.97/x
  3. Step 3: Cross multiply
    71,542.46x = 107,314.43 × 21,622.97
  4. Step 4: Simplify right side
    71,542.46x = 2,320,456,055.77
  5. Step 5: Solve for x
    x = 2,320,456,055.77/71,542.46
  6. Step 6: Final answer
    x = 32,434.67

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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.