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Finding the Fourth Proportional to 10,964.80, 16,447.20 and 10,053.55

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Solution

The fourth proportional to 10,964.80, 16,447.20 and 10,053.55 is: 15,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.80 : 16,447.20 = 10,053.55 : x
  2. Step 2: Convert to fraction form
    10,964.80/16,447.20 = 10,053.55/x
  3. Step 3: Cross multiply
    10,964.80x = 16,447.20 × 10,053.55
  4. Step 4: Simplify right side
    10,964.80x = 165,352,747.56
  5. Step 5: Solve for x
    x = 165,352,747.56/10,964.80
  6. Step 6: Final answer
    x = 15,080.33

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1.5x scale

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.