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Finding the Fourth Proportional to 22,459.55, 33,689.12 and 8,608.55

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Solution

The fourth proportional to 22,459.55, 33,689.12 and 8,608.55 is: 12,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,459.55 : 33,689.12 = 8,608.55 : x
  2. Step 2: Convert to fraction form
    22,459.55/33,689.12 = 8,608.55/x
  3. Step 3: Cross multiply
    22,459.55x = 33,689.12 × 8,608.55
  4. Step 4: Simplify right side
    22,459.55x = 290,014,262.49
  5. Step 5: Solve for x
    x = 290,014,262.49/22,459.55
  6. Step 6: Final answer
    x = 12,912.74

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1.5x scale

Why These Related Problems?

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