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Finding the Fourth Proportional to 2,956.54, 4,435.24 and 876.28

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Solution

The fourth proportional to 2,956.54, 4,435.24 and 876.28 is: 1,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.54 : 4,435.24 = 876.28 : x
  2. Step 2: Convert to fraction form
    2,956.54/4,435.24 = 876.28/x
  3. Step 3: Cross multiply
    2,956.54x = 4,435.24 × 876.28
  4. Step 4: Simplify right side
    2,956.54x = 3,886,487.74
  5. Step 5: Solve for x
    x = 3,886,487.74/2,956.54
  6. Step 6: Final answer
    x = 1,314.54

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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.