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Finding the Fourth Proportional to 86,627.58, 129,949.88 and 36,016.15

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Solution

The fourth proportional to 86,627.58, 129,949.88 and 36,016.15 is: 54,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,627.58 : 129,949.88 = 36,016.15 : x
  2. Step 2: Convert to fraction form
    86,627.58/129,949.88 = 36,016.15/x
  3. Step 3: Cross multiply
    86,627.58x = 129,949.88 × 36,016.15
  4. Step 4: Simplify right side
    86,627.58x = 4,680,294,370.56
  5. Step 5: Solve for x
    x = 4,680,294,370.56/86,627.58
  6. Step 6: Final answer
    x = 54,027.76

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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.