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Finding the Third Proportional to 58,624 and 90,831

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Solution

The third proportional to 58,624 and 90,831 is: 140,731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,624 : 90,831 = 90,831 : x
  2. Step 2: Convert to fraction form
    58,624/90,831 = 90,831/x
  3. Step 3: Cross multiply
    58,624x = 90,831 × 90,831
  4. Step 4: Simplify right side
    58,624x = 8,250,270,561
  5. Step 5: Solve for x
    x = 8,250,270,561/58,624
  6. Step 6: Final answer
    x = 140,731.96

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.