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Finding the Third Proportional to 56,824 and 84,136

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Solution

The third proportional to 56,824 and 84,136 is: 124,575.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,824 : 84,136 = 84,136 : x
  2. Step 2: Convert to fraction form
    56,824/84,136 = 84,136/x
  3. Step 3: Cross multiply
    56,824x = 84,136 × 84,136
  4. Step 4: Simplify right side
    56,824x = 7,078,866,496
  5. Step 5: Solve for x
    x = 7,078,866,496/56,824
  6. Step 6: Final answer
    x = 124,575.29

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.