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Finding the Fourth Proportional to 2,601.40, 3,902.10 and 957.23

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Solution

The fourth proportional to 2,601.40, 3,902.10 and 957.23 is: 1,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.40 : 3,902.10 = 957.23 : x
  2. Step 2: Convert to fraction form
    2,601.40/3,902.10 = 957.23/x
  3. Step 3: Cross multiply
    2,601.40x = 3,902.10 × 957.23
  4. Step 4: Simplify right side
    2,601.40x = 3,735,207.18
  5. Step 5: Solve for x
    x = 3,735,207.18/2,601.40
  6. Step 6: Final answer
    x = 1,435.85

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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.