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Finding the Fourth Proportional to 3,337.92, 5,012.64 and 2,825.28

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Solution

The fourth proportional to 3,337.92, 5,012.64 and 2,825.28 is: 4,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,337.92 : 5,012.64 = 2,825.28 : x
  2. Step 2: Convert to fraction form
    3,337.92/5,012.64 = 2,825.28/x
  3. Step 3: Cross multiply
    3,337.92x = 5,012.64 × 2,825.28
  4. Step 4: Simplify right side
    3,337.92x = 14,162,111.54
  5. Step 5: Solve for x
    x = 14,162,111.54/3,337.92
  6. Step 6: Final answer
    x = 4,242.80

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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.