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Finding the Fourth Proportional to 12,197.76, 16,724.28 and 12,081.12

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Solution

The fourth proportional to 12,197.76, 16,724.28 and 12,081.12 is: 16,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.76 : 16,724.28 = 12,081.12 : x
  2. Step 2: Convert to fraction form
    12,197.76/16,724.28 = 12,081.12/x
  3. Step 3: Cross multiply
    12,197.76x = 16,724.28 × 12,081.12
  4. Step 4: Simplify right side
    12,197.76x = 202,048,033.59
  5. Step 5: Solve for x
    x = 202,048,033.59/12,197.76
  6. Step 6: Final answer
    x = 16,564.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.