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Finding the Fourth Proportional to 2,936.63, 4,404.56 and 745.17

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Solution

The fourth proportional to 2,936.63, 4,404.56 and 745.17 is: 1,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.63 : 4,404.56 = 745.17 : x
  2. Step 2: Convert to fraction form
    2,936.63/4,404.56 = 745.17/x
  3. Step 3: Cross multiply
    2,936.63x = 4,404.56 × 745.17
  4. Step 4: Simplify right side
    2,936.63x = 3,282,142.25
  5. Step 5: Solve for x
    x = 3,282,142.25/2,936.63
  6. Step 6: Final answer
    x = 1,117.66

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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.