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Finding the Fourth Proportional to 2,675.32, 4,011.43 and 825.93

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Solution

The fourth proportional to 2,675.32, 4,011.43 and 825.93 is: 1,238.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.32 : 4,011.43 = 825.93 : x
  2. Step 2: Convert to fraction form
    2,675.32/4,011.43 = 825.93/x
  3. Step 3: Cross multiply
    2,675.32x = 4,011.43 × 825.93
  4. Step 4: Simplify right side
    2,675.32x = 3,313,160.38
  5. Step 5: Solve for x
    x = 3,313,160.38/2,675.32
  6. Step 6: Final answer
    x = 1,238.42

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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.