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Finding the Fourth Proportional to 3,862.40, 5,794.00 and 1,265.54

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Solution

The fourth proportional to 3,862.40, 5,794.00 and 1,265.54 is: 1,898.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.40 : 5,794.00 = 1,265.54 : x
  2. Step 2: Convert to fraction form
    3,862.40/5,794.00 = 1,265.54/x
  3. Step 3: Cross multiply
    3,862.40x = 5,794.00 × 1,265.54
  4. Step 4: Simplify right side
    3,862.40x = 7,332,506.63
  5. Step 5: Solve for x
    x = 7,332,506.63/3,862.40
  6. Step 6: Final answer
    x = 1,898.44

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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.