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Finding the Fourth Proportional to 71,343.84, 98,452.48 and 39,512.48

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Solution

The fourth proportional to 71,343.84, 98,452.48 and 39,512.48 is: 54,526.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,343.84 : 98,452.48 = 39,512.48 : x
  2. Step 2: Convert to fraction form
    71,343.84/98,452.48 = 39,512.48/x
  3. Step 3: Cross multiply
    71,343.84x = 98,452.48 × 39,512.48
  4. Step 4: Simplify right side
    71,343.84x = 3,890,101,646.95
  5. Step 5: Solve for x
    x = 3,890,101,646.95/71,343.84
  6. Step 6: Final answer
    x = 54,526.10

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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.