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Finding the Fourth Proportional to 83,801.68, 125,699.46 and 27,640.22

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Solution

The fourth proportional to 83,801.68, 125,699.46 and 27,640.22 is: 41,459.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,801.68 : 125,699.46 = 27,640.22 : x
  2. Step 2: Convert to fraction form
    83,801.68/125,699.46 = 27,640.22/x
  3. Step 3: Cross multiply
    83,801.68x = 125,699.46 × 27,640.22
  4. Step 4: Simplify right side
    83,801.68x = 3,474,360,728.28
  5. Step 5: Solve for x
    x = 3,474,360,728.28/83,801.68
  6. Step 6: Final answer
    x = 41,459.32

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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.