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Finding the Fourth Proportional to 83,685.60, 125,540.55 and 27,528.30

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Solution

The fourth proportional to 83,685.60, 125,540.55 and 27,528.30 is: 41,296.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,685.60 : 125,540.55 = 27,528.30 : x
  2. Step 2: Convert to fraction form
    83,685.60/125,540.55 = 27,528.30/x
  3. Step 3: Cross multiply
    83,685.60x = 125,540.55 × 27,528.30
  4. Step 4: Simplify right side
    83,685.60x = 3,455,917,922.57
  5. Step 5: Solve for x
    x = 3,455,917,922.57/83,685.60
  6. Step 6: Final answer
    x = 41,296.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.