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Finding the Fourth Proportional to 18,164.05, 27,240.78 and 7,068.09

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Solution

The fourth proportional to 18,164.05, 27,240.78 and 7,068.09 is: 10,600.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.05 : 27,240.78 = 7,068.09 : x
  2. Step 2: Convert to fraction form
    18,164.05/27,240.78 = 7,068.09/x
  3. Step 3: Cross multiply
    18,164.05x = 27,240.78 × 7,068.09
  4. Step 4: Simplify right side
    18,164.05x = 192,540,284.71
  5. Step 5: Solve for x
    x = 192,540,284.71/18,164.05
  6. Step 6: Final answer
    x = 10,600.07

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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.