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Finding the Fourth Proportional to 5,168.75, 7,748.47 and 2,046.65

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Solution

The fourth proportional to 5,168.75, 7,748.47 and 2,046.65 is: 3,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.75 : 7,748.47 = 2,046.65 : x
  2. Step 2: Convert to fraction form
    5,168.75/7,748.47 = 2,046.65/x
  3. Step 3: Cross multiply
    5,168.75x = 7,748.47 × 2,046.65
  4. Step 4: Simplify right side
    5,168.75x = 15,858,369.94
  5. Step 5: Solve for x
    x = 15,858,369.94/5,168.75
  6. Step 6: Final answer
    x = 3,068.13

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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.