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Finding the Fourth Proportional to 2,317.76, 3,477.10 and 674.33

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Solution

The fourth proportional to 2,317.76, 3,477.10 and 674.33 is: 1,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.76 : 3,477.10 = 674.33 : x
  2. Step 2: Convert to fraction form
    2,317.76/3,477.10 = 674.33/x
  3. Step 3: Cross multiply
    2,317.76x = 3,477.10 × 674.33
  4. Step 4: Simplify right side
    2,317.76x = 2,344,696.93
  5. Step 5: Solve for x
    x = 2,344,696.93/2,317.76
  6. Step 6: Final answer
    x = 1,011.62

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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.