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Finding the Third Proportional to 20,665.13 and 34,521.19

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Solution

The third proportional to 20,665.13 and 34,521.19 is: 57,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665.13 : 34,521.19 = 34,521.19 : x
  2. Step 2: Convert to fraction form
    20,665.13/34,521.19 = 34,521.19/x
  3. Step 3: Cross multiply
    20,665.13x = 34,521.19 × 34,521.19
  4. Step 4: Simplify right side
    20,665.13x = 1,191,712,386.41
  5. Step 5: Solve for x
    x = 1,191,712,386.41/20,665.13
  6. Step 6: Final answer
    x = 57,667.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.