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Finding the Fourth Proportional to 2,605.93, 3,909.33 and 962.48

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Solution

The fourth proportional to 2,605.93, 3,909.33 and 962.48 is: 1,443.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.93 : 3,909.33 = 962.48 : x
  2. Step 2: Convert to fraction form
    2,605.93/3,909.33 = 962.48/x
  3. Step 3: Cross multiply
    2,605.93x = 3,909.33 × 962.48
  4. Step 4: Simplify right side
    2,605.93x = 3,762,651.94
  5. Step 5: Solve for x
    x = 3,762,651.94/2,605.93
  6. Step 6: Final answer
    x = 1,443.88

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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.