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Finding the Fourth Proportional to 71,943.10, 107,905.20 and 22,028.20

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Solution

The fourth proportional to 71,943.10, 107,905.20 and 22,028.20 is: 33,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,943.10 : 107,905.20 = 22,028.20 : x
  2. Step 2: Convert to fraction form
    71,943.10/107,905.20 = 22,028.20/x
  3. Step 3: Cross multiply
    71,943.10x = 107,905.20 × 22,028.20
  4. Step 4: Simplify right side
    71,943.10x = 2,376,957,326.64
  5. Step 5: Solve for x
    x = 2,376,957,326.64/71,943.10
  6. Step 6: Final answer
    x = 33,039.41

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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.