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Finding the Third Proportional to 36,210 and 75,730

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Solution

The third proportional to 36,210 and 75,730 is: 158,382.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,210 : 75,730 = 75,730 : x
  2. Step 2: Convert to fraction form
    36,210/75,730 = 75,730/x
  3. Step 3: Cross multiply
    36,210x = 75,730 × 75,730
  4. Step 4: Simplify right side
    36,210x = 5,735,032,900
  5. Step 5: Solve for x
    x = 5,735,032,900/36,210
  6. Step 6: Final answer
    x = 158,382.57

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.