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Finding the Third Proportional to 11,331 and 15,928.31

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Solution

The third proportional to 11,331 and 15,928.31 is: 22,390.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331 : 15,928.31 = 15,928.31 : x
  2. Step 2: Convert to fraction form
    11,331/15,928.31 = 15,928.31/x
  3. Step 3: Cross multiply
    11,331x = 15,928.31 × 15,928.31
  4. Step 4: Simplify right side
    11,331x = 253,711,139.10
  5. Step 5: Solve for x
    x = 253,711,139.10/11,331
  6. Step 6: Final answer
    x = 22,390.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.