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Finding the Third Proportional to 62,916 and 137,928

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Solution

The third proportional to 62,916 and 137,928 is: 302,373.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,916 : 137,928 = 137,928 : x
  2. Step 2: Convert to fraction form
    62,916/137,928 = 137,928/x
  3. Step 3: Cross multiply
    62,916x = 137,928 × 137,928
  4. Step 4: Simplify right side
    62,916x = 19,024,133,184
  5. Step 5: Solve for x
    x = 19,024,133,184/62,916
  6. Step 6: Final answer
    x = 302,373.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.