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Finding the Fourth Proportional to 2,693.76, 4,041 and 962.40

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Solution

The fourth proportional to 2,693.76, 4,041 and 962.40 is: 1,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.76 : 4,041 = 962.40 : x
  2. Step 2: Convert to fraction form
    2,693.76/4,041 = 962.40/x
  3. Step 3: Cross multiply
    2,693.76x = 4,041 × 962.40
  4. Step 4: Simplify right side
    2,693.76x = 3,889,058.40
  5. Step 5: Solve for x
    x = 3,889,058.40/2,693.76
  6. Step 6: Final answer
    x = 1,443.73

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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.