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Finding the Fourth Proportional to 4,605.66, 6,908.46 and 2,139.11

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Solution

The fourth proportional to 4,605.66, 6,908.46 and 2,139.11 is: 3,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,605.66 : 6,908.46 = 2,139.11 : x
  2. Step 2: Convert to fraction form
    4,605.66/6,908.46 = 2,139.11/x
  3. Step 3: Cross multiply
    4,605.66x = 6,908.46 × 2,139.11
  4. Step 4: Simplify right side
    4,605.66x = 14,777,939.21
  5. Step 5: Solve for x
    x = 14,777,939.21/4,605.66
  6. Step 6: Final answer
    x = 3,208.65

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