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Finding the Fourth Proportional to 14,666.90, 22,016.55 and 8,105.90

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Solution

The fourth proportional to 14,666.90, 22,016.55 and 8,105.90 is: 12,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.90 : 22,016.55 = 8,105.90 : x
  2. Step 2: Convert to fraction form
    14,666.90/22,016.55 = 8,105.90/x
  3. Step 3: Cross multiply
    14,666.90x = 22,016.55 × 8,105.90
  4. Step 4: Simplify right side
    14,666.90x = 178,463,952.65
  5. Step 5: Solve for x
    x = 178,463,952.65/14,666.90
  6. Step 6: Final answer
    x = 12,167.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.