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Finding the Fourth Proportional to 14,630.73, 20,190.27 and 7,916.21

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Solution

The fourth proportional to 14,630.73, 20,190.27 and 7,916.21 is: 10,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.73 : 20,190.27 = 7,916.21 : x
  2. Step 2: Convert to fraction form
    14,630.73/20,190.27 = 7,916.21/x
  3. Step 3: Cross multiply
    14,630.73x = 20,190.27 × 7,916.21
  4. Step 4: Simplify right side
    14,630.73x = 159,830,377.70
  5. Step 5: Solve for x
    x = 159,830,377.70/14,630.73
  6. Step 6: Final answer
    x = 10,924.29

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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.