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Finding the Fourth Proportional to 5,652.80, 8,474.04 and 2,187.44

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Solution

The fourth proportional to 5,652.80, 8,474.04 and 2,187.44 is: 3,279.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,652.80 : 8,474.04 = 2,187.44 : x
  2. Step 2: Convert to fraction form
    5,652.80/8,474.04 = 2,187.44/x
  3. Step 3: Cross multiply
    5,652.80x = 8,474.04 × 2,187.44
  4. Step 4: Simplify right side
    5,652.80x = 18,536,454.06
  5. Step 5: Solve for x
    x = 18,536,454.06/5,652.80
  6. Step 6: Final answer
    x = 3,279.16

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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.