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Finding the Fourth Proportional to 6,767.92, 9,338.52 and 3,935.62

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Solution

The fourth proportional to 6,767.92, 9,338.52 and 3,935.62 is: 5,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,767.92 : 9,338.52 = 3,935.62 : x
  2. Step 2: Convert to fraction form
    6,767.92/9,338.52 = 3,935.62/x
  3. Step 3: Cross multiply
    6,767.92x = 9,338.52 × 3,935.62
  4. Step 4: Simplify right side
    6,767.92x = 36,752,866.08
  5. Step 5: Solve for x
    x = 36,752,866.08/6,767.92
  6. Step 6: Final answer
    x = 5,430.45

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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.