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Finding the Third Proportional to 7,472 and 16,280

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Solution

The third proportional to 7,472 and 16,280 is: 35,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472 : 16,280 = 16,280 : x
  2. Step 2: Convert to fraction form
    7,472/16,280 = 16,280/x
  3. Step 3: Cross multiply
    7,472x = 16,280 × 16,280
  4. Step 4: Simplify right side
    7,472x = 265,038,400
  5. Step 5: Solve for x
    x = 265,038,400/7,472
  6. Step 6: Final answer
    x = 35,470.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.