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Finding the Fourth Proportional to 22,668.22, 33,979.55 and 8,624.64

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Solution

The fourth proportional to 22,668.22, 33,979.55 and 8,624.64 is: 12,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,668.22 : 33,979.55 = 8,624.64 : x
  2. Step 2: Convert to fraction form
    22,668.22/33,979.55 = 8,624.64/x
  3. Step 3: Cross multiply
    22,668.22x = 33,979.55 × 8,624.64
  4. Step 4: Simplify right side
    22,668.22x = 293,061,386.11
  5. Step 5: Solve for x
    x = 293,061,386.11/22,668.22
  6. Step 6: Final answer
    x = 12,928.29

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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.