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Finding the Fourth Proportional to 5,393.47, 7,442.81 and 3,003.44

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Solution

The fourth proportional to 5,393.47, 7,442.81 and 3,003.44 is: 4,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.47 : 7,442.81 = 3,003.44 : x
  2. Step 2: Convert to fraction form
    5,393.47/7,442.81 = 3,003.44/x
  3. Step 3: Cross multiply
    5,393.47x = 7,442.81 × 3,003.44
  4. Step 4: Simplify right side
    5,393.47x = 22,354,033.27
  5. Step 5: Solve for x
    x = 22,354,033.27/5,393.47
  6. Step 6: Final answer
    x = 4,144.65

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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.