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Finding the Fourth Proportional to 5,382.07, 8,073.11 and 1,486.48

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Solution

The fourth proportional to 5,382.07, 8,073.11 and 1,486.48 is: 2,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.07 : 8,073.11 = 1,486.48 : x
  2. Step 2: Convert to fraction form
    5,382.07/8,073.11 = 1,486.48/x
  3. Step 3: Cross multiply
    5,382.07x = 8,073.11 × 1,486.48
  4. Step 4: Simplify right side
    5,382.07x = 12,000,482.07
  5. Step 5: Solve for x
    x = 12,000,482.07/5,382.07
  6. Step 6: Final answer
    x = 2,229.71

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Double scale
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Similar ratio
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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.