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Finding the Fourth Proportional to 30,758.27, 42,446.41 and 16,611.12

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Solution

The fourth proportional to 30,758.27, 42,446.41 and 16,611.12 is: 22,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.27 : 42,446.41 = 16,611.12 : x
  2. Step 2: Convert to fraction form
    30,758.27/42,446.41 = 16,611.12/x
  3. Step 3: Cross multiply
    30,758.27x = 42,446.41 × 16,611.12
  4. Step 4: Simplify right side
    30,758.27x = 705,082,368.55
  5. Step 5: Solve for x
    x = 705,082,368.55/30,758.27
  6. Step 6: Final answer
    x = 22,923.34

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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.