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Finding the Fourth Proportional to 8,656.44, 12,972.51 and 3,722.37

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Solution

The fourth proportional to 8,656.44, 12,972.51 and 3,722.37 is: 5,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.44 : 12,972.51 = 3,722.37 : x
  2. Step 2: Convert to fraction form
    8,656.44/12,972.51 = 3,722.37/x
  3. Step 3: Cross multiply
    8,656.44x = 12,972.51 × 3,722.37
  4. Step 4: Simplify right side
    8,656.44x = 48,288,482.05
  5. Step 5: Solve for x
    x = 48,288,482.05/8,656.44
  6. Step 6: Final answer
    x = 5,578.33

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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.