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Finding the Fourth Proportional to 2,315.24, 3,473.08 and 755.18

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Solution

The fourth proportional to 2,315.24, 3,473.08 and 755.18 is: 1,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.24 : 3,473.08 = 755.18 : x
  2. Step 2: Convert to fraction form
    2,315.24/3,473.08 = 755.18/x
  3. Step 3: Cross multiply
    2,315.24x = 3,473.08 × 755.18
  4. Step 4: Simplify right side
    2,315.24x = 2,622,788.80
  5. Step 5: Solve for x
    x = 2,622,788.80/2,315.24
  6. Step 6: Final answer
    x = 1,132.84

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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.