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Finding the Fourth Proportional to 2,472.96, 3,709.62 and 829.52

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Solution

The fourth proportional to 2,472.96, 3,709.62 and 829.52 is: 1,244.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.96 : 3,709.62 = 829.52 : x
  2. Step 2: Convert to fraction form
    2,472.96/3,709.62 = 829.52/x
  3. Step 3: Cross multiply
    2,472.96x = 3,709.62 × 829.52
  4. Step 4: Simplify right side
    2,472.96x = 3,077,203.98
  5. Step 5: Solve for x
    x = 3,077,203.98/2,472.96
  6. Step 6: Final answer
    x = 1,244.34

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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.