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Finding the Fourth Proportional to 86,260.65, 129,314.03 and 33,657.90

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Solution

The fourth proportional to 86,260.65, 129,314.03 and 33,657.90 is: 50,456.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,260.65 : 129,314.03 = 33,657.90 : x
  2. Step 2: Convert to fraction form
    86,260.65/129,314.03 = 33,657.90/x
  3. Step 3: Cross multiply
    86,260.65x = 129,314.03 × 33,657.90
  4. Step 4: Simplify right side
    86,260.65x = 4,352,438,522.05
  5. Step 5: Solve for x
    x = 4,352,438,522.05/86,260.65
  6. Step 6: Final answer
    x = 50,456.83

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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.