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Finding the Fourth Proportional to 83,218.80, 124,835.07 and 27,057.63

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Solution

The fourth proportional to 83,218.80, 124,835.07 and 27,057.63 is: 40,588.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,218.80 : 124,835.07 = 27,057.63 : x
  2. Step 2: Convert to fraction form
    83,218.80/124,835.07 = 27,057.63/x
  3. Step 3: Cross multiply
    83,218.80x = 124,835.07 × 27,057.63
  4. Step 4: Simplify right side
    83,218.80x = 3,377,741,135.08
  5. Step 5: Solve for x
    x = 3,377,741,135.08/83,218.80
  6. Step 6: Final answer
    x = 40,588.68

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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.