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Finding the Fourth Proportional to 2,758.76, 3,802.65 and 2,260.52

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Solution

The fourth proportional to 2,758.76, 3,802.65 and 2,260.52 is: 3,115.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.76 : 3,802.65 = 2,260.52 : x
  2. Step 2: Convert to fraction form
    2,758.76/3,802.65 = 2,260.52/x
  3. Step 3: Cross multiply
    2,758.76x = 3,802.65 × 2,260.52
  4. Step 4: Simplify right side
    2,758.76x = 8,595,966.38
  5. Step 5: Solve for x
    x = 8,595,966.38/2,758.76
  6. Step 6: Final answer
    x = 3,115.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.