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Finding the Fourth Proportional to 4,959.92, 7,431.67 and 2,489.52

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Solution

The fourth proportional to 4,959.92, 7,431.67 and 2,489.52 is: 3,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.92 : 7,431.67 = 2,489.52 : x
  2. Step 2: Convert to fraction form
    4,959.92/7,431.67 = 2,489.52/x
  3. Step 3: Cross multiply
    4,959.92x = 7,431.67 × 2,489.52
  4. Step 4: Simplify right side
    4,959.92x = 18,501,291.10
  5. Step 5: Solve for x
    x = 18,501,291.10/4,959.92
  6. Step 6: Final answer
    x = 3,730.16

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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.