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Finding the Fourth Proportional to 1,593.90, 2,392.80 and 1,008.90

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Solution

The fourth proportional to 1,593.90, 2,392.80 and 1,008.90 is: 1,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.90 : 2,392.80 = 1,008.90 : x
  2. Step 2: Convert to fraction form
    1,593.90/2,392.80 = 1,008.90/x
  3. Step 3: Cross multiply
    1,593.90x = 2,392.80 × 1,008.90
  4. Step 4: Simplify right side
    1,593.90x = 2,414,095.92
  5. Step 5: Solve for x
    x = 2,414,095.92/1,593.90
  6. Step 6: Final answer
    x = 1,514.58

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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.