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Finding the Third Proportional to 48,903 and 72,465

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Solution

The third proportional to 48,903 and 72,465 is: 107,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,903 : 72,465 = 72,465 : x
  2. Step 2: Convert to fraction form
    48,903/72,465 = 72,465/x
  3. Step 3: Cross multiply
    48,903x = 72,465 × 72,465
  4. Step 4: Simplify right side
    48,903x = 5,251,176,225
  5. Step 5: Solve for x
    x = 5,251,176,225/48,903
  6. Step 6: Final answer
    x = 107,379.43

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.