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Finding the Fourth Proportional to 16,089.22, 22,201.99 and 8,918.62

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Solution

The fourth proportional to 16,089.22, 22,201.99 and 8,918.62 is: 12,307.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,089.22 : 22,201.99 = 8,918.62 : x
  2. Step 2: Convert to fraction form
    16,089.22/22,201.99 = 8,918.62/x
  3. Step 3: Cross multiply
    16,089.22x = 22,201.99 × 8,918.62
  4. Step 4: Simplify right side
    16,089.22x = 198,011,112.05
  5. Step 5: Solve for x
    x = 198,011,112.05/16,089.22
  6. Step 6: Final answer
    x = 12,307.07

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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.