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Finding the Fourth Proportional to 2,595.92, 3,893.82 and 648.14

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Solution

The fourth proportional to 2,595.92, 3,893.82 and 648.14 is: 972.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,595.92 : 3,893.82 = 648.14 : x
  2. Step 2: Convert to fraction form
    2,595.92/3,893.82 = 648.14/x
  3. Step 3: Cross multiply
    2,595.92x = 3,893.82 × 648.14
  4. Step 4: Simplify right side
    2,595.92x = 2,523,721.03
  5. Step 5: Solve for x
    x = 2,523,721.03/2,595.92
  6. Step 6: Final answer
    x = 972.19

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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.