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Finding the Fourth Proportional to 18,913.23, 26,087.22 and 17,227.89

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Solution

The fourth proportional to 18,913.23, 26,087.22 and 17,227.89 is: 23,762.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.23 : 26,087.22 = 17,227.89 : x
  2. Step 2: Convert to fraction form
    18,913.23/26,087.22 = 17,227.89/x
  3. Step 3: Cross multiply
    18,913.23x = 26,087.22 × 17,227.89
  4. Step 4: Simplify right side
    18,913.23x = 449,427,756.57
  5. Step 5: Solve for x
    x = 449,427,756.57/18,913.23
  6. Step 6: Final answer
    x = 23,762.61

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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.