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Finding the Fourth Proportional to 5,422.62, 7,483.24 and 2,938.62

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Solution

The fourth proportional to 5,422.62, 7,483.24 and 2,938.62 is: 4,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.62 : 7,483.24 = 2,938.62 : x
  2. Step 2: Convert to fraction form
    5,422.62/7,483.24 = 2,938.62/x
  3. Step 3: Cross multiply
    5,422.62x = 7,483.24 × 2,938.62
  4. Step 4: Simplify right side
    5,422.62x = 21,990,398.73
  5. Step 5: Solve for x
    x = 21,990,398.73/5,422.62
  6. Step 6: Final answer
    x = 4,055.31

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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.