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Finding the Fourth Proportional to 22,081.77, 33,115.64 and 7,287.93

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Solution

The fourth proportional to 22,081.77, 33,115.64 and 7,287.93 is: 10,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,081.77 : 33,115.64 = 7,287.93 : x
  2. Step 2: Convert to fraction form
    22,081.77/33,115.64 = 7,287.93/x
  3. Step 3: Cross multiply
    22,081.77x = 33,115.64 × 7,287.93
  4. Step 4: Simplify right side
    22,081.77x = 241,344,429.79
  5. Step 5: Solve for x
    x = 241,344,429.79/22,081.77
  6. Step 6: Final answer
    x = 10,929.58

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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.