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Finding the Fourth Proportional to 22,305.84, 30,765.92 and 18,943.33

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Solution

The fourth proportional to 22,305.84, 30,765.92 and 18,943.33 is: 26,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.84 : 30,765.92 = 18,943.33 : x
  2. Step 2: Convert to fraction form
    22,305.84/30,765.92 = 18,943.33/x
  3. Step 3: Cross multiply
    22,305.84x = 30,765.92 × 18,943.33
  4. Step 4: Simplify right side
    22,305.84x = 582,808,975.31
  5. Step 5: Solve for x
    x = 582,808,975.31/22,305.84
  6. Step 6: Final answer
    x = 26,128.09

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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.