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Finding the Fourth Proportional to 6,108, 9,166.56 and 4,649.76

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Solution

The fourth proportional to 6,108, 9,166.56 and 4,649.76 is: 6,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,108 : 9,166.56 = 4,649.76 : x
  2. Step 2: Convert to fraction form
    6,108/9,166.56 = 4,649.76/x
  3. Step 3: Cross multiply
    6,108x = 9,166.56 × 4,649.76
  4. Step 4: Simplify right side
    6,108x = 42,622,304.03
  5. Step 5: Solve for x
    x = 42,622,304.03/6,108
  6. Step 6: Final answer
    x = 6,978.11

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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.