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Finding the Third Proportional to 18,407 and 29,270

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Solution

The third proportional to 18,407 and 29,270 is: 46,543.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407 : 29,270 = 29,270 : x
  2. Step 2: Convert to fraction form
    18,407/29,270 = 29,270/x
  3. Step 3: Cross multiply
    18,407x = 29,270 × 29,270
  4. Step 4: Simplify right side
    18,407x = 856,732,900
  5. Step 5: Solve for x
    x = 856,732,900/18,407
  6. Step 6: Final answer
    x = 46,543.86

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.