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Finding the Fourth Proportional to 10,891.99, 16,348.01 and 6,740.11

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Solution

The fourth proportional to 10,891.99, 16,348.01 and 6,740.11 is: 10,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.99 : 16,348.01 = 6,740.11 : x
  2. Step 2: Convert to fraction form
    10,891.99/16,348.01 = 6,740.11/x
  3. Step 3: Cross multiply
    10,891.99x = 16,348.01 × 6,740.11
  4. Step 4: Simplify right side
    10,891.99x = 110,187,351.98
  5. Step 5: Solve for x
    x = 110,187,351.98/10,891.99
  6. Step 6: Final answer
    x = 10,116.37

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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.