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Finding the Third Proportional to 65,707.50 and 99,381

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Solution

The third proportional to 65,707.50 and 99,381 is: 150,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,707.50 : 99,381 = 99,381 : x
  2. Step 2: Convert to fraction form
    65,707.50/99,381 = 99,381/x
  3. Step 3: Cross multiply
    65,707.50x = 99,381 × 99,381
  4. Step 4: Simplify right side
    65,707.50x = 9,876,583,161
  5. Step 5: Solve for x
    x = 9,876,583,161/65,707.50
  6. Step 6: Final answer
    x = 150,311.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.