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Finding the Fourth Proportional to 2,303.13, 3,452.46 and 987.23

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Solution

The fourth proportional to 2,303.13, 3,452.46 and 987.23 is: 1,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.13 : 3,452.46 = 987.23 : x
  2. Step 2: Convert to fraction form
    2,303.13/3,452.46 = 987.23/x
  3. Step 3: Cross multiply
    2,303.13x = 3,452.46 × 987.23
  4. Step 4: Simplify right side
    2,303.13x = 3,408,371.47
  5. Step 5: Solve for x
    x = 3,408,371.47/2,303.13
  6. Step 6: Final answer
    x = 1,479.88

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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.