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Finding the Third Proportional to 53,438 and 75,957

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Solution

The third proportional to 53,438 and 75,957 is: 107,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,438 : 75,957 = 75,957 : x
  2. Step 2: Convert to fraction form
    53,438/75,957 = 75,957/x
  3. Step 3: Cross multiply
    53,438x = 75,957 × 75,957
  4. Step 4: Simplify right side
    53,438x = 5,769,465,849
  5. Step 5: Solve for x
    x = 5,769,465,849/53,438
  6. Step 6: Final answer
    x = 107,965.60

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.