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Finding the Fourth Proportional to 6,844.97, 9,384.48 and 6,720.41

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Solution

The fourth proportional to 6,844.97, 9,384.48 and 6,720.41 is: 9,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,844.97 : 9,384.48 = 6,720.41 : x
  2. Step 2: Convert to fraction form
    6,844.97/9,384.48 = 6,720.41/x
  3. Step 3: Cross multiply
    6,844.97x = 9,384.48 × 6,720.41
  4. Step 4: Simplify right side
    6,844.97x = 63,067,519.63
  5. Step 5: Solve for x
    x = 63,067,519.63/6,844.97
  6. Step 6: Final answer
    x = 9,213.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.