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Finding the Fourth Proportional to 8,808.30, 13,212.36 and 2,964.87

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Solution

The fourth proportional to 8,808.30, 13,212.36 and 2,964.87 is: 4,447.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.30 : 13,212.36 = 2,964.87 : x
  2. Step 2: Convert to fraction form
    8,808.30/13,212.36 = 2,964.87/x
  3. Step 3: Cross multiply
    8,808.30x = 13,212.36 × 2,964.87
  4. Step 4: Simplify right side
    8,808.30x = 39,172,929.79
  5. Step 5: Solve for x
    x = 39,172,929.79/8,808.30
  6. Step 6: Final answer
    x = 4,447.27

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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.