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Finding the Third Proportional to 34,490 and 75,754

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Solution

The third proportional to 34,490 and 75,754 is: 166,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,490 : 75,754 = 75,754 : x
  2. Step 2: Convert to fraction form
    34,490/75,754 = 75,754/x
  3. Step 3: Cross multiply
    34,490x = 75,754 × 75,754
  4. Step 4: Simplify right side
    34,490x = 5,738,668,516
  5. Step 5: Solve for x
    x = 5,738,668,516/34,490
  6. Step 6: Final answer
    x = 166,386.45

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.