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Finding the Third Proportional to 14,328 and 21,576

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Solution

The third proportional to 14,328 and 21,576 is: 32,490.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328 : 21,576 = 21,576 : x
  2. Step 2: Convert to fraction form
    14,328/21,576 = 21,576/x
  3. Step 3: Cross multiply
    14,328x = 21,576 × 21,576
  4. Step 4: Simplify right side
    14,328x = 465,523,776
  5. Step 5: Solve for x
    x = 465,523,776/14,328
  6. Step 6: Final answer
    x = 32,490.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.