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Finding the Fourth Proportional to 1,472.34, 2,031.66 and 882.75

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Solution

The fourth proportional to 1,472.34, 2,031.66 and 882.75 is: 1,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.34 : 2,031.66 = 882.75 : x
  2. Step 2: Convert to fraction form
    1,472.34/2,031.66 = 882.75/x
  3. Step 3: Cross multiply
    1,472.34x = 2,031.66 × 882.75
  4. Step 4: Simplify right side
    1,472.34x = 1,793,447.87
  5. Step 5: Solve for x
    x = 1,793,447.87/1,472.34
  6. Step 6: Final answer
    x = 1,218.09

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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.