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Finding the Fourth Proportional to 4,957.84, 6,842.02 and 2,719.90

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Solution

The fourth proportional to 4,957.84, 6,842.02 and 2,719.90 is: 3,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,957.84 : 6,842.02 = 2,719.90 : x
  2. Step 2: Convert to fraction form
    4,957.84/6,842.02 = 2,719.90/x
  3. Step 3: Cross multiply
    4,957.84x = 6,842.02 × 2,719.90
  4. Step 4: Simplify right side
    4,957.84x = 18,609,610.20
  5. Step 5: Solve for x
    x = 18,609,610.20/4,957.84
  6. Step 6: Final answer
    x = 3,753.57

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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.