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Finding the Fourth Proportional to 17,775.72, 26,669.34 and 8,542.44

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Solution

The fourth proportional to 17,775.72, 26,669.34 and 8,542.44 is: 12,816.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.72 : 26,669.34 = 8,542.44 : x
  2. Step 2: Convert to fraction form
    17,775.72/26,669.34 = 8,542.44/x
  3. Step 3: Cross multiply
    17,775.72x = 26,669.34 × 8,542.44
  4. Step 4: Simplify right side
    17,775.72x = 227,821,236.79
  5. Step 5: Solve for x
    x = 227,821,236.79/17,775.72
  6. Step 6: Final answer
    x = 12,816.43

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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.