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Finding the Fourth Proportional to 2,224.24, 3,335.54 and 763

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Solution

The fourth proportional to 2,224.24, 3,335.54 and 763 is: 1,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.24 : 3,335.54 = 763 : x
  2. Step 2: Convert to fraction form
    2,224.24/3,335.54 = 763/x
  3. Step 3: Cross multiply
    2,224.24x = 3,335.54 × 763
  4. Step 4: Simplify right side
    2,224.24x = 2,545,017.02
  5. Step 5: Solve for x
    x = 2,545,017.02/2,224.24
  6. Step 6: Final answer
    x = 1,144.22

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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.