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Finding the Third Proportional to 14,976 and 16,320

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Solution

The third proportional to 14,976 and 16,320 is: 17,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,976 : 16,320 = 16,320 : x
  2. Step 2: Convert to fraction form
    14,976/16,320 = 16,320/x
  3. Step 3: Cross multiply
    14,976x = 16,320 × 16,320
  4. Step 4: Simplify right side
    14,976x = 266,342,400
  5. Step 5: Solve for x
    x = 266,342,400/14,976
  6. Step 6: Final answer
    x = 17,784.62

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.