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Finding the Fourth Proportional to 19,500.50, 26,917.56 and 11,549.54

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Solution

The fourth proportional to 19,500.50, 26,917.56 and 11,549.54 is: 15,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,500.50 : 26,917.56 = 11,549.54 : x
  2. Step 2: Convert to fraction form
    19,500.50/26,917.56 = 11,549.54/x
  3. Step 3: Cross multiply
    19,500.50x = 26,917.56 × 11,549.54
  4. Step 4: Simplify right side
    19,500.50x = 310,885,301.33
  5. Step 5: Solve for x
    x = 310,885,301.33/19,500.50
  6. Step 6: Final answer
    x = 15,942.43

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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.