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Finding the Fourth Proportional to 39,441, 54,428.82 and 22,674.12

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Solution

The fourth proportional to 39,441, 54,428.82 and 22,674.12 is: 31,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,441 : 54,428.82 = 22,674.12 : x
  2. Step 2: Convert to fraction form
    39,441/54,428.82 = 22,674.12/x
  3. Step 3: Cross multiply
    39,441x = 54,428.82 × 22,674.12
  4. Step 4: Simplify right side
    39,441x = 1,234,125,596.14
  5. Step 5: Solve for x
    x = 1,234,125,596.14/39,441
  6. Step 6: Final answer
    x = 31,290.42

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Double scale
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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.