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Finding the Fourth Proportional to 83,884.92, 115,765.97 and 48,080.89

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Solution

The fourth proportional to 83,884.92, 115,765.97 and 48,080.89 is: 66,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,884.92 : 115,765.97 = 48,080.89 : x
  2. Step 2: Convert to fraction form
    83,884.92/115,765.97 = 48,080.89/x
  3. Step 3: Cross multiply
    83,884.92x = 115,765.97 × 48,080.89
  4. Step 4: Simplify right side
    83,884.92x = 5,566,130,869.31
  5. Step 5: Solve for x
    x = 5,566,130,869.31/83,884.92
  6. Step 6: Final answer
    x = 66,354.37

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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.