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Finding the Fourth Proportional to 12,482.28, 17,227.22 and 12,072.02

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Solution

The fourth proportional to 12,482.28, 17,227.22 and 12,072.02 is: 16,661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.28 : 17,227.22 = 12,072.02 : x
  2. Step 2: Convert to fraction form
    12,482.28/17,227.22 = 12,072.02/x
  3. Step 3: Cross multiply
    12,482.28x = 17,227.22 × 12,072.02
  4. Step 4: Simplify right side
    12,482.28x = 207,967,344.38
  5. Step 5: Solve for x
    x = 207,967,344.38/12,482.28
  6. Step 6: Final answer
    x = 16,661.01

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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.