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Finding the Fourth Proportional to 8,808.72, 13,214.44 and 2,964.87

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Solution

The fourth proportional to 8,808.72, 13,214.44 and 2,964.87 is: 4,447.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.72 : 13,214.44 = 2,964.87 : x
  2. Step 2: Convert to fraction form
    8,808.72/13,214.44 = 2,964.87/x
  3. Step 3: Cross multiply
    8,808.72x = 13,214.44 × 2,964.87
  4. Step 4: Simplify right side
    8,808.72x = 39,179,083.75
  5. Step 5: Solve for x
    x = 39,179,083.75/8,808.72
  6. Step 6: Final answer
    x = 4,447.76

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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.