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Finding the Fourth Proportional to 86,531.78, 129,797.67 and 36,598.92

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Solution

The fourth proportional to 86,531.78, 129,797.67 and 36,598.92 is: 54,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,531.78 : 129,797.67 = 36,598.92 : x
  2. Step 2: Convert to fraction form
    86,531.78/129,797.67 = 36,598.92/x
  3. Step 3: Cross multiply
    86,531.78x = 129,797.67 × 36,598.92
  4. Step 4: Simplify right side
    86,531.78x = 4,750,454,540.52
  5. Step 5: Solve for x
    x = 4,750,454,540.52/86,531.78
  6. Step 6: Final answer
    x = 54,898.38

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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.