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Finding the Fourth Proportional to 2,914.65, 4,370.76 and 966.47

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Solution

The fourth proportional to 2,914.65, 4,370.76 and 966.47 is: 1,449.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.65 : 4,370.76 = 966.47 : x
  2. Step 2: Convert to fraction form
    2,914.65/4,370.76 = 966.47/x
  3. Step 3: Cross multiply
    2,914.65x = 4,370.76 × 966.47
  4. Step 4: Simplify right side
    2,914.65x = 4,224,186.56
  5. Step 5: Solve for x
    x = 4,224,186.56/2,914.65
  6. Step 6: Final answer
    x = 1,449.29

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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.