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Finding the Fourth Proportional to 16,230.50, 22,398.76 and 9,156.92

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Solution

The fourth proportional to 16,230.50, 22,398.76 and 9,156.92 is: 12,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,230.50 : 22,398.76 = 9,156.92 : x
  2. Step 2: Convert to fraction form
    16,230.50/22,398.76 = 9,156.92/x
  3. Step 3: Cross multiply
    16,230.50x = 22,398.76 × 9,156.92
  4. Step 4: Simplify right side
    16,230.50x = 205,103,653.42
  5. Step 5: Solve for x
    x = 205,103,653.42/16,230.50
  6. Step 6: Final answer
    x = 12,636.93

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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.