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Finding the Fourth Proportional to 86,305.60, 129,508.62 and 36,382.60

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Solution

The fourth proportional to 86,305.60, 129,508.62 and 36,382.60 is: 54,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305.60 : 129,508.62 = 36,382.60 : x
  2. Step 2: Convert to fraction form
    86,305.60/129,508.62 = 36,382.60/x
  3. Step 3: Cross multiply
    86,305.60x = 129,508.62 × 36,382.60
  4. Step 4: Simplify right side
    86,305.60x = 4,711,860,318.01
  5. Step 5: Solve for x
    x = 4,711,860,318.01/86,305.60
  6. Step 6: Final answer
    x = 54,595.07

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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.