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Finding the Fourth Proportional to 16,615.50, 22,930.11 and 9,163.50

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Solution

The fourth proportional to 16,615.50, 22,930.11 and 9,163.50 is: 12,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.50 : 22,930.11 = 9,163.50 : x
  2. Step 2: Convert to fraction form
    16,615.50/22,930.11 = 9,163.50/x
  3. Step 3: Cross multiply
    16,615.50x = 22,930.11 × 9,163.50
  4. Step 4: Simplify right side
    16,615.50x = 210,120,062.99
  5. Step 5: Solve for x
    x = 210,120,062.99/16,615.50
  6. Step 6: Final answer
    x = 12,646.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.