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Finding the Third Proportional to 29,915 and 46,315

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Solution

The third proportional to 29,915 and 46,315 is: 71,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,915 : 46,315 = 46,315 : x
  2. Step 2: Convert to fraction form
    29,915/46,315 = 46,315/x
  3. Step 3: Cross multiply
    29,915x = 46,315 × 46,315
  4. Step 4: Simplify right side
    29,915x = 2,145,079,225
  5. Step 5: Solve for x
    x = 2,145,079,225/29,915
  6. Step 6: Final answer
    x = 71,705.81

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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.