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Finding the Fourth Proportional to 5,342.46, 7,372.11 and 2,984.16

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Solution

The fourth proportional to 5,342.46, 7,372.11 and 2,984.16 is: 4,117.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.46 : 7,372.11 = 2,984.16 : x
  2. Step 2: Convert to fraction form
    5,342.46/7,372.11 = 2,984.16/x
  3. Step 3: Cross multiply
    5,342.46x = 7,372.11 × 2,984.16
  4. Step 4: Simplify right side
    5,342.46x = 21,999,555.78
  5. Step 5: Solve for x
    x = 21,999,555.78/5,342.46
  6. Step 6: Final answer
    x = 4,117.87

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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.