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Finding the Fourth Proportional to 85,062.97, 127,612.68 and 25,903.54

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Solution

The fourth proportional to 85,062.97, 127,612.68 and 25,903.54 is: 38,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062.97 : 127,612.68 = 25,903.54 : x
  2. Step 2: Convert to fraction form
    85,062.97/127,612.68 = 25,903.54/x
  3. Step 3: Cross multiply
    85,062.97x = 127,612.68 × 25,903.54
  4. Step 4: Simplify right side
    85,062.97x = 3,305,620,160.89
  5. Step 5: Solve for x
    x = 3,305,620,160.89/85,062.97
  6. Step 6: Final answer
    x = 38,860.86

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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.