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Finding the Fourth Proportional to 16,772.80, 25,166.40 and 8,564.80

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Solution

The fourth proportional to 16,772.80, 25,166.40 and 8,564.80 is: 12,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.80 : 25,166.40 = 8,564.80 : x
  2. Step 2: Convert to fraction form
    16,772.80/25,166.40 = 8,564.80/x
  3. Step 3: Cross multiply
    16,772.80x = 25,166.40 × 8,564.80
  4. Step 4: Simplify right side
    16,772.80x = 215,545,182.72
  5. Step 5: Solve for x
    x = 215,545,182.72/16,772.80
  6. Step 6: Final answer
    x = 12,850.88

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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.