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Finding the Fourth Proportional to 6,168.50, 8,512.67 and 3,374

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Solution

The fourth proportional to 6,168.50, 8,512.67 and 3,374 is: 4,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,168.50 : 8,512.67 = 3,374 : x
  2. Step 2: Convert to fraction form
    6,168.50/8,512.67 = 3,374/x
  3. Step 3: Cross multiply
    6,168.50x = 8,512.67 × 3,374
  4. Step 4: Simplify right side
    6,168.50x = 28,721,731.71
  5. Step 5: Solve for x
    x = 28,721,731.71/6,168.50
  6. Step 6: Final answer
    x = 4,656.19

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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.