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Finding the Third Proportional to 19,845 and 27,211.50

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Solution

The third proportional to 19,845 and 27,211.50 is: 37,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845 : 27,211.50 = 27,211.50 : x
  2. Step 2: Convert to fraction form
    19,845/27,211.50 = 27,211.50/x
  3. Step 3: Cross multiply
    19,845x = 27,211.50 × 27,211.50
  4. Step 4: Simplify right side
    19,845x = 740,465,732.25
  5. Step 5: Solve for x
    x = 740,465,732.25/19,845
  6. Step 6: Final answer
    x = 37,312.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.