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Finding the Third Proportional to 38,407 and 56,355

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Solution

The third proportional to 38,407 and 56,355 is: 82,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,407 : 56,355 = 56,355 : x
  2. Step 2: Convert to fraction form
    38,407/56,355 = 56,355/x
  3. Step 3: Cross multiply
    38,407x = 56,355 × 56,355
  4. Step 4: Simplify right side
    38,407x = 3,175,886,025
  5. Step 5: Solve for x
    x = 3,175,886,025/38,407
  6. Step 6: Final answer
    x = 82,690.29

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.