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Finding the Fourth Proportional to 5,150.76, 7,107.98 and 2,792.88

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Solution

The fourth proportional to 5,150.76, 7,107.98 and 2,792.88 is: 3,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.76 : 7,107.98 = 2,792.88 : x
  2. Step 2: Convert to fraction form
    5,150.76/7,107.98 = 2,792.88/x
  3. Step 3: Cross multiply
    5,150.76x = 7,107.98 × 2,792.88
  4. Step 4: Simplify right side
    5,150.76x = 19,851,721.22
  5. Step 5: Solve for x
    x = 19,851,721.22/5,150.76
  6. Step 6: Final answer
    x = 3,854.13

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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.