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Finding the Fourth Proportional to 4,648.16, 6,972.48 and 1,185.44

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Solution

The fourth proportional to 4,648.16, 6,972.48 and 1,185.44 is: 1,778.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,648.16 : 6,972.48 = 1,185.44 : x
  2. Step 2: Convert to fraction form
    4,648.16/6,972.48 = 1,185.44/x
  3. Step 3: Cross multiply
    4,648.16x = 6,972.48 × 1,185.44
  4. Step 4: Simplify right side
    4,648.16x = 8,265,456.69
  5. Step 5: Solve for x
    x = 8,265,456.69/4,648.16
  6. Step 6: Final answer
    x = 1,778.22

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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.