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Finding the Fourth Proportional to 5,158.24, 7,735.92 and 1,648.24

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Solution

The fourth proportional to 5,158.24, 7,735.92 and 1,648.24 is: 2,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.24 : 7,735.92 = 1,648.24 : x
  2. Step 2: Convert to fraction form
    5,158.24/7,735.92 = 1,648.24/x
  3. Step 3: Cross multiply
    5,158.24x = 7,735.92 × 1,648.24
  4. Step 4: Simplify right side
    5,158.24x = 12,750,652.78
  5. Step 5: Solve for x
    x = 12,750,652.78/5,158.24
  6. Step 6: Final answer
    x = 2,471.90

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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.