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Finding the Third Proportional to 49,130 and 77,913

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Solution

The third proportional to 49,130 and 77,913 is: 123,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,130 : 77,913 = 77,913 : x
  2. Step 2: Convert to fraction form
    49,130/77,913 = 77,913/x
  3. Step 3: Cross multiply
    49,130x = 77,913 × 77,913
  4. Step 4: Simplify right side
    49,130x = 6,070,435,569
  5. Step 5: Solve for x
    x = 6,070,435,569/49,130
  6. Step 6: Final answer
    x = 123,558.63

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.