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Finding the Fourth Proportional to 71,343.76, 98,453.08 and 39,512.56

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Solution

The fourth proportional to 71,343.76, 98,453.08 and 39,512.56 is: 54,526.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,343.76 : 98,453.08 = 39,512.56 : x
  2. Step 2: Convert to fraction form
    71,343.76/98,453.08 = 39,512.56/x
  3. Step 3: Cross multiply
    71,343.76x = 98,453.08 × 39,512.56
  4. Step 4: Simplify right side
    71,343.76x = 3,890,133,230.68
  5. Step 5: Solve for x
    x = 3,890,133,230.68/71,343.76
  6. Step 6: Final answer
    x = 54,526.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.