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Finding the Fourth Proportional to 6,722.48, 9,275.64 and 3,927.44

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Solution

The fourth proportional to 6,722.48, 9,275.64 and 3,927.44 is: 5,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.48 : 9,275.64 = 3,927.44 : x
  2. Step 2: Convert to fraction form
    6,722.48/9,275.64 = 3,927.44/x
  3. Step 3: Cross multiply
    6,722.48x = 9,275.64 × 3,927.44
  4. Step 4: Simplify right side
    6,722.48x = 36,429,519.56
  5. Step 5: Solve for x
    x = 36,429,519.56/6,722.48
  6. Step 6: Final answer
    x = 5,419.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.