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Finding the Fourth Proportional to 6,702.52, 10,040.70 and 4,387

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Solution

The fourth proportional to 6,702.52, 10,040.70 and 4,387 is: 6,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,702.52 : 10,040.70 = 4,387 : x
  2. Step 2: Convert to fraction form
    6,702.52/10,040.70 = 4,387/x
  3. Step 3: Cross multiply
    6,702.52x = 10,040.70 × 4,387
  4. Step 4: Simplify right side
    6,702.52x = 44,048,550.90
  5. Step 5: Solve for x
    x = 44,048,550.90/6,702.52
  6. Step 6: Final answer
    x = 6,571.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.