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Finding the Third Proportional to 84,685.50 and 98,415

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Solution

The third proportional to 84,685.50 and 98,415 is: 114,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.50 : 98,415 = 98,415 : x
  2. Step 2: Convert to fraction form
    84,685.50/98,415 = 98,415/x
  3. Step 3: Cross multiply
    84,685.50x = 98,415 × 98,415
  4. Step 4: Simplify right side
    84,685.50x = 9,685,512,225
  5. Step 5: Solve for x
    x = 9,685,512,225/84,685.50
  6. Step 6: Final answer
    x = 114,370.37

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.