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Finding the Fourth Proportional to 1,592.06, 2,387.99 and 667.13

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Solution

The fourth proportional to 1,592.06, 2,387.99 and 667.13 is: 1,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.06 : 2,387.99 = 667.13 : x
  2. Step 2: Convert to fraction form
    1,592.06/2,387.99 = 667.13/x
  3. Step 3: Cross multiply
    1,592.06x = 2,387.99 × 667.13
  4. Step 4: Simplify right side
    1,592.06x = 1,593,089.50
  5. Step 5: Solve for x
    x = 1,593,089.50/1,592.06
  6. Step 6: Final answer
    x = 1,000.65

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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.