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Finding the Fourth Proportional to 1,481.64, 2,222.52 and 751.02

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Solution

The fourth proportional to 1,481.64, 2,222.52 and 751.02 is: 1,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.64 : 2,222.52 = 751.02 : x
  2. Step 2: Convert to fraction form
    1,481.64/2,222.52 = 751.02/x
  3. Step 3: Cross multiply
    1,481.64x = 2,222.52 × 751.02
  4. Step 4: Simplify right side
    1,481.64x = 1,669,156.97
  5. Step 5: Solve for x
    x = 1,669,156.97/1,481.64
  6. Step 6: Final answer
    x = 1,126.56

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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.