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Finding the Fourth Proportional to 2,607.54, 3,912.22 and 876.16

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Solution

The fourth proportional to 2,607.54, 3,912.22 and 876.16 is: 1,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.54 : 3,912.22 = 876.16 : x
  2. Step 2: Convert to fraction form
    2,607.54/3,912.22 = 876.16/x
  3. Step 3: Cross multiply
    2,607.54x = 3,912.22 × 876.16
  4. Step 4: Simplify right side
    2,607.54x = 3,427,730.68
  5. Step 5: Solve for x
    x = 3,427,730.68/2,607.54
  6. Step 6: Final answer
    x = 1,314.55

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1.5x scale

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.