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Finding the Fourth Proportional to 6,796.16, 9,378.79 and 4,107

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Solution

The fourth proportional to 6,796.16, 9,378.79 and 4,107 is: 5,667.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,796.16 : 9,378.79 = 4,107 : x
  2. Step 2: Convert to fraction form
    6,796.16/9,378.79 = 4,107/x
  3. Step 3: Cross multiply
    6,796.16x = 9,378.79 × 4,107
  4. Step 4: Simplify right side
    6,796.16x = 38,518,690.53
  5. Step 5: Solve for x
    x = 38,518,690.53/6,796.16
  6. Step 6: Final answer
    x = 5,667.71

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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.