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Finding the Third Proportional to 18,031 and 39,104.50

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Solution

The third proportional to 18,031 and 39,104.50 is: 84,807.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031 : 39,104.50 = 39,104.50 : x
  2. Step 2: Convert to fraction form
    18,031/39,104.50 = 39,104.50/x
  3. Step 3: Cross multiply
    18,031x = 39,104.50 × 39,104.50
  4. Step 4: Simplify right side
    18,031x = 1,529,161,920.25
  5. Step 5: Solve for x
    x = 1,529,161,920.25/18,031
  6. Step 6: Final answer
    x = 84,807.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.