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Finding the Fourth Proportional to 4,956.21, 6,844.20 and 3,190.92

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Solution

The fourth proportional to 4,956.21, 6,844.20 and 3,190.92 is: 4,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,956.21 : 6,844.20 = 3,190.92 : x
  2. Step 2: Convert to fraction form
    4,956.21/6,844.20 = 3,190.92/x
  3. Step 3: Cross multiply
    4,956.21x = 6,844.20 × 3,190.92
  4. Step 4: Simplify right side
    4,956.21x = 21,839,294.66
  5. Step 5: Solve for x
    x = 21,839,294.66/4,956.21
  6. Step 6: Final answer
    x = 4,406.45

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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.