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Finding the Fourth Proportional to 71,383.14, 98,506.31 and 39,552.57

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Solution

The fourth proportional to 71,383.14, 98,506.31 and 39,552.57 is: 54,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,383.14 : 98,506.31 = 39,552.57 : x
  2. Step 2: Convert to fraction form
    71,383.14/98,506.31 = 39,552.57/x
  3. Step 3: Cross multiply
    71,383.14x = 98,506.31 × 39,552.57
  4. Step 4: Simplify right side
    71,383.14x = 3,896,177,523.95
  5. Step 5: Solve for x
    x = 3,896,177,523.95/71,383.14
  6. Step 6: Final answer
    x = 54,581.20

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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.