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Finding the Fourth Proportional to 10,728.22, 14,791.14 and 6,944.68

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Solution

The fourth proportional to 10,728.22, 14,791.14 and 6,944.68 is: 9,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.22 : 14,791.14 = 6,944.68 : x
  2. Step 2: Convert to fraction form
    10,728.22/14,791.14 = 6,944.68/x
  3. Step 3: Cross multiply
    10,728.22x = 14,791.14 × 6,944.68
  4. Step 4: Simplify right side
    10,728.22x = 102,719,734.14
  5. Step 5: Solve for x
    x = 102,719,734.14/10,728.22
  6. Step 6: Final answer
    x = 9,574.72

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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.