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Finding the Fourth Proportional to 5,508.97, 7,602.39 and 2,991.09

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Solution

The fourth proportional to 5,508.97, 7,602.39 and 2,991.09 is: 4,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508.97 : 7,602.39 = 2,991.09 : x
  2. Step 2: Convert to fraction form
    5,508.97/7,602.39 = 2,991.09/x
  3. Step 3: Cross multiply
    5,508.97x = 7,602.39 × 2,991.09
  4. Step 4: Simplify right side
    5,508.97x = 22,739,432.71
  5. Step 5: Solve for x
    x = 22,739,432.71/5,508.97
  6. Step 6: Final answer
    x = 4,127.71

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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.