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Finding the Fourth Proportional to 34,369.50, 47,422.71 and 20,223.90

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Solution

The fourth proportional to 34,369.50, 47,422.71 and 20,223.90 is: 27,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,369.50 : 47,422.71 = 20,223.90 : x
  2. Step 2: Convert to fraction form
    34,369.50/47,422.71 = 20,223.90/x
  3. Step 3: Cross multiply
    34,369.50x = 47,422.71 × 20,223.90
  4. Step 4: Simplify right side
    34,369.50x = 959,072,144.77
  5. Step 5: Solve for x
    x = 959,072,144.77/34,369.50
  6. Step 6: Final answer
    x = 27,904.75

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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.