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Finding the Third Proportional to 32,940 and 53,136

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Solution

The third proportional to 32,940 and 53,136 is: 85,714.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,940 : 53,136 = 53,136 : x
  2. Step 2: Convert to fraction form
    32,940/53,136 = 53,136/x
  3. Step 3: Cross multiply
    32,940x = 53,136 × 53,136
  4. Step 4: Simplify right side
    32,940x = 2,823,434,496
  5. Step 5: Solve for x
    x = 2,823,434,496/32,940
  6. Step 6: Final answer
    x = 85,714.47

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.