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Finding the Fourth Proportional to 11,571.98, 17,358.08 and 2,806.97

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Solution

The fourth proportional to 11,571.98, 17,358.08 and 2,806.97 is: 4,210.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,571.98 : 17,358.08 = 2,806.97 : x
  2. Step 2: Convert to fraction form
    11,571.98/17,358.08 = 2,806.97/x
  3. Step 3: Cross multiply
    11,571.98x = 17,358.08 × 2,806.97
  4. Step 4: Simplify right side
    11,571.98x = 48,723,639.18
  5. Step 5: Solve for x
    x = 48,723,639.18/11,571.98
  6. Step 6: Final answer
    x = 4,210.48

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.