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Finding the Third Proportional to 32,690 and 50,709

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Solution

The third proportional to 32,690 and 50,709 is: 78,660.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,690 : 50,709 = 50,709 : x
  2. Step 2: Convert to fraction form
    32,690/50,709 = 50,709/x
  3. Step 3: Cross multiply
    32,690x = 50,709 × 50,709
  4. Step 4: Simplify right side
    32,690x = 2,571,402,681
  5. Step 5: Solve for x
    x = 2,571,402,681/32,690
  6. Step 6: Final answer
    x = 78,660.22

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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.