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Finding the Fourth Proportional to 83,884.80, 115,765.80 and 48,080.76

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Solution

The fourth proportional to 83,884.80, 115,765.80 and 48,080.76 is: 66,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,884.80 : 115,765.80 = 48,080.76 : x
  2. Step 2: Convert to fraction form
    83,884.80/115,765.80 = 48,080.76/x
  3. Step 3: Cross multiply
    83,884.80x = 115,765.80 × 48,080.76
  4. Step 4: Simplify right side
    83,884.80x = 5,566,107,646.01
  5. Step 5: Solve for x
    x = 5,566,107,646.01/83,884.80
  6. Step 6: Final answer
    x = 66,354.19

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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.