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Finding the Fourth Proportional to 2,752.78, 3,798.78 and 1,510.78

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Solution

The fourth proportional to 2,752.78, 3,798.78 and 1,510.78 is: 2,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.78 : 3,798.78 = 1,510.78 : x
  2. Step 2: Convert to fraction form
    2,752.78/3,798.78 = 1,510.78/x
  3. Step 3: Cross multiply
    2,752.78x = 3,798.78 × 1,510.78
  4. Step 4: Simplify right side
    2,752.78x = 5,739,120.85
  5. Step 5: Solve for x
    x = 5,739,120.85/2,752.78
  6. Step 6: Final answer
    x = 2,084.85

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