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Finding the Fourth Proportional to 2,954.24, 4,432.02 and 874.28

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Solution

The fourth proportional to 2,954.24, 4,432.02 and 874.28 is: 1,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.24 : 4,432.02 = 874.28 : x
  2. Step 2: Convert to fraction form
    2,954.24/4,432.02 = 874.28/x
  3. Step 3: Cross multiply
    2,954.24x = 4,432.02 × 874.28
  4. Step 4: Simplify right side
    2,954.24x = 3,874,826.45
  5. Step 5: Solve for x
    x = 3,874,826.45/2,954.24
  6. Step 6: Final answer
    x = 1,311.62

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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.