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Finding the Third Proportional to 65,820.75 and 99,312.75

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Solution

The third proportional to 65,820.75 and 99,312.75 is: 149,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,820.75 : 99,312.75 = 99,312.75 : x
  2. Step 2: Convert to fraction form
    65,820.75/99,312.75 = 99,312.75/x
  3. Step 3: Cross multiply
    65,820.75x = 99,312.75 × 99,312.75
  4. Step 4: Simplify right side
    65,820.75x = 9,863,022,312.56
  5. Step 5: Solve for x
    x = 9,863,022,312.56/65,820.75
  6. Step 6: Final answer
    x = 149,846.70

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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.