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Finding the Fourth Proportional to 1,592, 2,387.13 and 551.42

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Solution

The fourth proportional to 1,592, 2,387.13 and 551.42 is: 826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592 : 2,387.13 = 551.42 : x
  2. Step 2: Convert to fraction form
    1,592/2,387.13 = 551.42/x
  3. Step 3: Cross multiply
    1,592x = 2,387.13 × 551.42
  4. Step 4: Simplify right side
    1,592x = 1,316,311.22
  5. Step 5: Solve for x
    x = 1,316,311.22/1,592
  6. Step 6: Final answer
    x = 826.83

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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.