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Finding the Fourth Proportional to 3,034.29, 4,551 and 842.88

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Solution

The fourth proportional to 3,034.29, 4,551 and 842.88 is: 1,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.29 : 4,551 = 842.88 : x
  2. Step 2: Convert to fraction form
    3,034.29/4,551 = 842.88/x
  3. Step 3: Cross multiply
    3,034.29x = 4,551 × 842.88
  4. Step 4: Simplify right side
    3,034.29x = 3,835,946.88
  5. Step 5: Solve for x
    x = 3,835,946.88/3,034.29
  6. Step 6: Final answer
    x = 1,264.20

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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.