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Finding the Fourth Proportional to 1,753.76, 2,624.97 and 961.99

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Solution

The fourth proportional to 1,753.76, 2,624.97 and 961.99 is: 1,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.76 : 2,624.97 = 961.99 : x
  2. Step 2: Convert to fraction form
    1,753.76/2,624.97 = 961.99/x
  3. Step 3: Cross multiply
    1,753.76x = 2,624.97 × 961.99
  4. Step 4: Simplify right side
    1,753.76x = 2,525,194.89
  5. Step 5: Solve for x
    x = 2,525,194.89/1,753.76
  6. Step 6: Final answer
    x = 1,439.87

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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.