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Finding the Fourth Proportional to 5,487.48, 8,272.22 and 5,020.43

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Solution

The fourth proportional to 5,487.48, 8,272.22 and 5,020.43 is: 7,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.48 : 8,272.22 = 5,020.43 : x
  2. Step 2: Convert to fraction form
    5,487.48/8,272.22 = 5,020.43/x
  3. Step 3: Cross multiply
    5,487.48x = 8,272.22 × 5,020.43
  4. Step 4: Simplify right side
    5,487.48x = 41,530,034.99
  5. Step 5: Solve for x
    x = 41,530,034.99/5,487.48
  6. Step 6: Final answer
    x = 7,568.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.