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Finding the Fourth Proportional to 2,873.46, 4,309.77 and 925.41

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Solution

The fourth proportional to 2,873.46, 4,309.77 and 925.41 is: 1,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.46 : 4,309.77 = 925.41 : x
  2. Step 2: Convert to fraction form
    2,873.46/4,309.77 = 925.41/x
  3. Step 3: Cross multiply
    2,873.46x = 4,309.77 × 925.41
  4. Step 4: Simplify right side
    2,873.46x = 3,988,304.26
  5. Step 5: Solve for x
    x = 3,988,304.26/2,873.46
  6. Step 6: Final answer
    x = 1,387.98

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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.