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Finding the Fourth Proportional to 6,472.51, 9,702.45 and 2,086.97

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Solution

The fourth proportional to 6,472.51, 9,702.45 and 2,086.97 is: 3,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472.51 : 9,702.45 = 2,086.97 : x
  2. Step 2: Convert to fraction form
    6,472.51/9,702.45 = 2,086.97/x
  3. Step 3: Cross multiply
    6,472.51x = 9,702.45 × 2,086.97
  4. Step 4: Simplify right side
    6,472.51x = 20,248,673.56
  5. Step 5: Solve for x
    x = 20,248,673.56/6,472.51
  6. Step 6: Final answer
    x = 3,128.41

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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.