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Finding the Third Proportional to 57,160 and 87,683

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Solution

The third proportional to 57,160 and 87,683 is: 134,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160 : 87,683 = 87,683 : x
  2. Step 2: Convert to fraction form
    57,160/87,683 = 87,683/x
  3. Step 3: Cross multiply
    57,160x = 87,683 × 87,683
  4. Step 4: Simplify right side
    57,160x = 7,688,308,489
  5. Step 5: Solve for x
    x = 7,688,308,489/57,160
  6. Step 6: Final answer
    x = 134,505.05

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.