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Finding the Fourth Proportional to 5,891.20, 8,835.72 and 2,381.02

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Solution

The fourth proportional to 5,891.20, 8,835.72 and 2,381.02 is: 3,571.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.20 : 8,835.72 = 2,381.02 : x
  2. Step 2: Convert to fraction form
    5,891.20/8,835.72 = 2,381.02/x
  3. Step 3: Cross multiply
    5,891.20x = 8,835.72 × 2,381.02
  4. Step 4: Simplify right side
    5,891.20x = 21,038,026.03
  5. Step 5: Solve for x
    x = 21,038,026.03/5,891.20
  6. Step 6: Final answer
    x = 3,571.09

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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.