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Finding the Fourth Proportional to 6,166.38, 8,510.56 and 3,929.24

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Solution

The fourth proportional to 6,166.38, 8,510.56 and 3,929.24 is: 5,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,166.38 : 8,510.56 = 3,929.24 : x
  2. Step 2: Convert to fraction form
    6,166.38/8,510.56 = 3,929.24/x
  3. Step 3: Cross multiply
    6,166.38x = 8,510.56 × 3,929.24
  4. Step 4: Simplify right side
    6,166.38x = 33,440,032.77
  5. Step 5: Solve for x
    x = 33,440,032.77/6,166.38
  6. Step 6: Final answer
    x = 5,422.96

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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.