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Finding the Fourth Proportional to 8,807.10, 13,212.45 and 2,964.30

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Solution

The fourth proportional to 8,807.10, 13,212.45 and 2,964.30 is: 4,447.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.10 : 13,212.45 = 2,964.30 : x
  2. Step 2: Convert to fraction form
    8,807.10/13,212.45 = 2,964.30/x
  3. Step 3: Cross multiply
    8,807.10x = 13,212.45 × 2,964.30
  4. Step 4: Simplify right side
    8,807.10x = 39,165,665.54
  5. Step 5: Solve for x
    x = 39,165,665.54/8,807.10
  6. Step 6: Final answer
    x = 4,447.06

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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.