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Finding the Fourth Proportional to 85,065.25, 127,686.54 and 37,713.59

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Solution

The fourth proportional to 85,065.25, 127,686.54 and 37,713.59 is: 56,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,065.25 : 127,686.54 = 37,713.59 : x
  2. Step 2: Convert to fraction form
    85,065.25/127,686.54 = 37,713.59/x
  3. Step 3: Cross multiply
    85,065.25x = 127,686.54 × 37,713.59
  4. Step 4: Simplify right side
    85,065.25x = 4,815,517,874.31
  5. Step 5: Solve for x
    x = 4,815,517,874.31/85,065.25
  6. Step 6: Final answer
    x = 56,609.70

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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.