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Finding the Fourth Proportional to 14,950.17, 20,630.70 and 8,661.33

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Solution

The fourth proportional to 14,950.17, 20,630.70 and 8,661.33 is: 11,952.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,950.17 : 20,630.70 = 8,661.33 : x
  2. Step 2: Convert to fraction form
    14,950.17/20,630.70 = 8,661.33/x
  3. Step 3: Cross multiply
    14,950.17x = 20,630.70 × 8,661.33
  4. Step 4: Simplify right side
    14,950.17x = 178,689,300.83
  5. Step 5: Solve for x
    x = 178,689,300.83/14,950.17
  6. Step 6: Final answer
    x = 11,952.33

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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.