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Finding the Fourth Proportional to 16,520.89, 24,786.20 and 6,655.09

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Solution

The fourth proportional to 16,520.89, 24,786.20 and 6,655.09 is: 9,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,520.89 : 24,786.20 = 6,655.09 : x
  2. Step 2: Convert to fraction form
    16,520.89/24,786.20 = 6,655.09/x
  3. Step 3: Cross multiply
    16,520.89x = 24,786.20 × 6,655.09
  4. Step 4: Simplify right side
    16,520.89x = 164,954,391.76
  5. Step 5: Solve for x
    x = 164,954,391.76/16,520.89
  6. Step 6: Final answer
    x = 9,984.59

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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.