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Finding the Third Proportional to 59,504 and 87,609

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Solution

The third proportional to 59,504 and 87,609 is: 128,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,504 : 87,609 = 87,609 : x
  2. Step 2: Convert to fraction form
    59,504/87,609 = 87,609/x
  3. Step 3: Cross multiply
    59,504x = 87,609 × 87,609
  4. Step 4: Simplify right side
    59,504x = 7,675,336,881
  5. Step 5: Solve for x
    x = 7,675,336,881/59,504
  6. Step 6: Final answer
    x = 128,988.59

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.