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Finding the Fourth Proportional to 1,471.62, 2,030.92 and 882.56

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Solution

The fourth proportional to 1,471.62, 2,030.92 and 882.56 is: 1,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.62 : 2,030.92 = 882.56 : x
  2. Step 2: Convert to fraction form
    1,471.62/2,030.92 = 882.56/x
  3. Step 3: Cross multiply
    1,471.62x = 2,030.92 × 882.56
  4. Step 4: Simplify right side
    1,471.62x = 1,792,408.76
  5. Step 5: Solve for x
    x = 1,792,408.76/1,471.62
  6. Step 6: Final answer
    x = 1,217.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.