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Finding the Third Proportional to 53,440 and 83,395

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Solution

The third proportional to 53,440 and 83,395 is: 130,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,440 : 83,395 = 83,395 : x
  2. Step 2: Convert to fraction form
    53,440/83,395 = 83,395/x
  3. Step 3: Cross multiply
    53,440x = 83,395 × 83,395
  4. Step 4: Simplify right side
    53,440x = 6,954,726,025
  5. Step 5: Solve for x
    x = 6,954,726,025/53,440
  6. Step 6: Final answer
    x = 130,140.83

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.