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Finding the Fourth Proportional to 3,972.65, 5,959.02 and 1,199.35

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Solution

The fourth proportional to 3,972.65, 5,959.02 and 1,199.35 is: 1,799.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.65 : 5,959.02 = 1,199.35 : x
  2. Step 2: Convert to fraction form
    3,972.65/5,959.02 = 1,199.35/x
  3. Step 3: Cross multiply
    3,972.65x = 5,959.02 × 1,199.35
  4. Step 4: Simplify right side
    3,972.65x = 7,146,935.74
  5. Step 5: Solve for x
    x = 7,146,935.74/3,972.65
  6. Step 6: Final answer
    x = 1,799.03

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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.