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Finding the Third Proportional to 34,516.75 and 74,470

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Solution

The third proportional to 34,516.75 and 74,470 is: 160,669.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,516.75 : 74,470 = 74,470 : x
  2. Step 2: Convert to fraction form
    34,516.75/74,470 = 74,470/x
  3. Step 3: Cross multiply
    34,516.75x = 74,470 × 74,470
  4. Step 4: Simplify right side
    34,516.75x = 5,545,780,900
  5. Step 5: Solve for x
    x = 5,545,780,900/34,516.75
  6. Step 6: Final answer
    x = 160,669.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.