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Finding the Fourth Proportional to 1,172.34, 1,758.92 and 1,026.27

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Solution

The fourth proportional to 1,172.34, 1,758.92 and 1,026.27 is: 1,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.34 : 1,758.92 = 1,026.27 : x
  2. Step 2: Convert to fraction form
    1,172.34/1,758.92 = 1,026.27/x
  3. Step 3: Cross multiply
    1,172.34x = 1,758.92 × 1,026.27
  4. Step 4: Simplify right side
    1,172.34x = 1,805,121.70
  5. Step 5: Solve for x
    x = 1,805,121.70/1,172.34
  6. Step 6: Final answer
    x = 1,539.76

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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.