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Finding the Fourth Proportional to 5,631.78, 7,772.58 and 3,273.47

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Solution

The fourth proportional to 5,631.78, 7,772.58 and 3,273.47 is: 4,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.78 : 7,772.58 = 3,273.47 : x
  2. Step 2: Convert to fraction form
    5,631.78/7,772.58 = 3,273.47/x
  3. Step 3: Cross multiply
    5,631.78x = 7,772.58 × 3,273.47
  4. Step 4: Simplify right side
    5,631.78x = 25,443,297.74
  5. Step 5: Solve for x
    x = 25,443,297.74/5,631.78
  6. Step 6: Final answer
    x = 4,517.80

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1.5x scale

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.