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Finding the Fourth Proportional to 2,696.01, 4,043.56 and 747.76

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Solution

The fourth proportional to 2,696.01, 4,043.56 and 747.76 is: 1,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.01 : 4,043.56 = 747.76 : x
  2. Step 2: Convert to fraction form
    2,696.01/4,043.56 = 747.76/x
  3. Step 3: Cross multiply
    2,696.01x = 4,043.56 × 747.76
  4. Step 4: Simplify right side
    2,696.01x = 3,023,588.47
  5. Step 5: Solve for x
    x = 3,023,588.47/2,696.01
  6. Step 6: Final answer
    x = 1,121.50

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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.