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Finding the Fourth Proportional to 3,967.88, 5,952.34 and 1,858.04

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Solution

The fourth proportional to 3,967.88, 5,952.34 and 1,858.04 is: 2,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.88 : 5,952.34 = 1,858.04 : x
  2. Step 2: Convert to fraction form
    3,967.88/5,952.34 = 1,858.04/x
  3. Step 3: Cross multiply
    3,967.88x = 5,952.34 × 1,858.04
  4. Step 4: Simplify right side
    3,967.88x = 11,059,685.81
  5. Step 5: Solve for x
    x = 11,059,685.81/3,967.88
  6. Step 6: Final answer
    x = 2,787.30

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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.