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Finding the Third Proportional to 58,489 and 83,643

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Solution

The third proportional to 58,489 and 83,643 is: 119,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,489 : 83,643 = 83,643 : x
  2. Step 2: Convert to fraction form
    58,489/83,643 = 83,643/x
  3. Step 3: Cross multiply
    58,489x = 83,643 × 83,643
  4. Step 4: Simplify right side
    58,489x = 6,996,151,449
  5. Step 5: Solve for x
    x = 6,996,151,449/58,489
  6. Step 6: Final answer
    x = 119,614.82

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.