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Finding the Third Proportional to 9,811.13 and 16,215.19

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Solution

The third proportional to 9,811.13 and 16,215.19 is: 26,799.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.13 : 16,215.19 = 16,215.19 : x
  2. Step 2: Convert to fraction form
    9,811.13/16,215.19 = 16,215.19/x
  3. Step 3: Cross multiply
    9,811.13x = 16,215.19 × 16,215.19
  4. Step 4: Simplify right side
    9,811.13x = 262,932,305.66
  5. Step 5: Solve for x
    x = 262,932,305.66/9,811.13
  6. Step 6: Final answer
    x = 26,799.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.