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Finding the Fourth Proportional to 22,175.80, 30,602.36 and 13,674.52

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Solution

The fourth proportional to 22,175.80, 30,602.36 and 13,674.52 is: 18,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,175.80 : 30,602.36 = 13,674.52 : x
  2. Step 2: Convert to fraction form
    22,175.80/30,602.36 = 13,674.52/x
  3. Step 3: Cross multiply
    22,175.80x = 30,602.36 × 13,674.52
  4. Step 4: Simplify right side
    22,175.80x = 418,472,583.87
  5. Step 5: Solve for x
    x = 418,472,583.87/22,175.80
  6. Step 6: Final answer
    x = 18,870.69

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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.