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Finding the Fourth Proportional to 4,786.92, 6,605.91 and 2,691

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Solution

The fourth proportional to 4,786.92, 6,605.91 and 2,691 is: 3,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.92 : 6,605.91 = 2,691 : x
  2. Step 2: Convert to fraction form
    4,786.92/6,605.91 = 2,691/x
  3. Step 3: Cross multiply
    4,786.92x = 6,605.91 × 2,691
  4. Step 4: Simplify right side
    4,786.92x = 17,776,503.81
  5. Step 5: Solve for x
    x = 17,776,503.81/4,786.92
  6. Step 6: Final answer
    x = 3,713.56

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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.