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Finding the Fourth Proportional to 1,252.92, 1,875.16 and 960.84

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Solution

The fourth proportional to 1,252.92, 1,875.16 and 960.84 is: 1,438.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.92 : 1,875.16 = 960.84 : x
  2. Step 2: Convert to fraction form
    1,252.92/1,875.16 = 960.84/x
  3. Step 3: Cross multiply
    1,252.92x = 1,875.16 × 960.84
  4. Step 4: Simplify right side
    1,252.92x = 1,801,728.73
  5. Step 5: Solve for x
    x = 1,801,728.73/1,252.92
  6. Step 6: Final answer
    x = 1,438.02

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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.