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Finding the Fourth Proportional to 1,022.76, 1,532.13 and 675.04

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Solution

The fourth proportional to 1,022.76, 1,532.13 and 675.04 is: 1,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.76 : 1,532.13 = 675.04 : x
  2. Step 2: Convert to fraction form
    1,022.76/1,532.13 = 675.04/x
  3. Step 3: Cross multiply
    1,022.76x = 1,532.13 × 675.04
  4. Step 4: Simplify right side
    1,022.76x = 1,034,249.04
  5. Step 5: Solve for x
    x = 1,034,249.04/1,022.76
  6. Step 6: Final answer
    x = 1,011.23

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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.