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Finding the Fourth Proportional to 2,917.24, 4,375.80 and 969.46

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Solution

The fourth proportional to 2,917.24, 4,375.80 and 969.46 is: 1,454.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.24 : 4,375.80 = 969.46 : x
  2. Step 2: Convert to fraction form
    2,917.24/4,375.80 = 969.46/x
  3. Step 3: Cross multiply
    2,917.24x = 4,375.80 × 969.46
  4. Step 4: Simplify right side
    2,917.24x = 4,242,163.07
  5. Step 5: Solve for x
    x = 4,242,163.07/2,917.24
  6. Step 6: Final answer
    x = 1,454.17

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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.