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Finding the Fourth Proportional to 3,908.04, 5,862.02 and 1,172.04

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Solution

The fourth proportional to 3,908.04, 5,862.02 and 1,172.04 is: 1,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.04 : 5,862.02 = 1,172.04 : x
  2. Step 2: Convert to fraction form
    3,908.04/5,862.02 = 1,172.04/x
  3. Step 3: Cross multiply
    3,908.04x = 5,862.02 × 1,172.04
  4. Step 4: Simplify right side
    3,908.04x = 6,870,521.92
  5. Step 5: Solve for x
    x = 6,870,521.92/3,908.04
  6. Step 6: Final answer
    x = 1,758.05

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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.