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Finding the Fourth Proportional to 33,219, 45,842.22 and 18,315

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Solution

The fourth proportional to 33,219, 45,842.22 and 18,315 is: 25,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,219 : 45,842.22 = 18,315 : x
  2. Step 2: Convert to fraction form
    33,219/45,842.22 = 18,315/x
  3. Step 3: Cross multiply
    33,219x = 45,842.22 × 18,315
  4. Step 4: Simplify right side
    33,219x = 839,600,259.30
  5. Step 5: Solve for x
    x = 839,600,259.30/33,219
  6. Step 6: Final answer
    x = 25,274.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.