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Finding the Fourth Proportional to 2,917.26, 4,376.03 and 969.44

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Solution

The fourth proportional to 2,917.26, 4,376.03 and 969.44 is: 1,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.26 : 4,376.03 = 969.44 : x
  2. Step 2: Convert to fraction form
    2,917.26/4,376.03 = 969.44/x
  3. Step 3: Cross multiply
    2,917.26x = 4,376.03 × 969.44
  4. Step 4: Simplify right side
    2,917.26x = 4,242,271.80
  5. Step 5: Solve for x
    x = 4,242,271.80/2,917.26
  6. Step 6: Final answer
    x = 1,454.20

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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.