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Finding the Fourth Proportional to 26,602.20, 39,845.70 and 21,994.20

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Solution

The fourth proportional to 26,602.20, 39,845.70 and 21,994.20 is: 32,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,602.20 : 39,845.70 = 21,994.20 : x
  2. Step 2: Convert to fraction form
    26,602.20/39,845.70 = 21,994.20/x
  3. Step 3: Cross multiply
    26,602.20x = 39,845.70 × 21,994.20
  4. Step 4: Simplify right side
    26,602.20x = 876,374,294.94
  5. Step 5: Solve for x
    x = 876,374,294.94/26,602.20
  6. Step 6: Final answer
    x = 32,943.68

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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.