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Finding the Fourth Proportional to 1,293.33, 1,937.84 and 926.27

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Solution

The fourth proportional to 1,293.33, 1,937.84 and 926.27 is: 1,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.33 : 1,937.84 = 926.27 : x
  2. Step 2: Convert to fraction form
    1,293.33/1,937.84 = 926.27/x
  3. Step 3: Cross multiply
    1,293.33x = 1,937.84 × 926.27
  4. Step 4: Simplify right side
    1,293.33x = 1,794,948.74
  5. Step 5: Solve for x
    x = 1,794,948.74/1,293.33
  6. Step 6: Final answer
    x = 1,387.85

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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.