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Finding the Third Proportional to 39,988 and 58,444

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Solution

The third proportional to 39,988 and 58,444 is: 85,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988 : 58,444 = 58,444 : x
  2. Step 2: Convert to fraction form
    39,988/58,444 = 58,444/x
  3. Step 3: Cross multiply
    39,988x = 58,444 × 58,444
  4. Step 4: Simplify right side
    39,988x = 3,415,701,136
  5. Step 5: Solve for x
    x = 3,415,701,136/39,988
  6. Step 6: Final answer
    x = 85,418.15

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.