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Finding the Fourth Proportional to 3,357.28, 5,027.28 and 2,696.08

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Solution

The fourth proportional to 3,357.28, 5,027.28 and 2,696.08 is: 4,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.28 : 5,027.28 = 2,696.08 : x
  2. Step 2: Convert to fraction form
    3,357.28/5,027.28 = 2,696.08/x
  3. Step 3: Cross multiply
    3,357.28x = 5,027.28 × 2,696.08
  4. Step 4: Simplify right side
    3,357.28x = 13,553,949.06
  5. Step 5: Solve for x
    x = 13,553,949.06/3,357.28
  6. Step 6: Final answer
    x = 4,037.18

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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.