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Finding the Fourth Proportional to 2,992.68, 4,489.38 and 1,531.44

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Solution

The fourth proportional to 2,992.68, 4,489.38 and 1,531.44 is: 2,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.68 : 4,489.38 = 1,531.44 : x
  2. Step 2: Convert to fraction form
    2,992.68/4,489.38 = 1,531.44/x
  3. Step 3: Cross multiply
    2,992.68x = 4,489.38 × 1,531.44
  4. Step 4: Simplify right side
    2,992.68x = 6,875,216.11
  5. Step 5: Solve for x
    x = 6,875,216.11/2,992.68
  6. Step 6: Final answer
    x = 2,297.34

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1.5x scale

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.