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Finding the Third Proportional to 32,280 and 47,136

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Solution

The third proportional to 32,280 and 47,136 is: 68,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,280 : 47,136 = 47,136 : x
  2. Step 2: Convert to fraction form
    32,280/47,136 = 47,136/x
  3. Step 3: Cross multiply
    32,280x = 47,136 × 47,136
  4. Step 4: Simplify right side
    32,280x = 2,221,802,496
  5. Step 5: Solve for x
    x = 2,221,802,496/32,280
  6. Step 6: Final answer
    x = 68,829.07

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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.