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Finding the Third Proportional to 11,400 and 15,060

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Solution

The third proportional to 11,400 and 15,060 is: 19,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400 : 15,060 = 15,060 : x
  2. Step 2: Convert to fraction form
    11,400/15,060 = 15,060/x
  3. Step 3: Cross multiply
    11,400x = 15,060 × 15,060
  4. Step 4: Simplify right side
    11,400x = 226,803,600
  5. Step 5: Solve for x
    x = 226,803,600/11,400
  6. Step 6: Final answer
    x = 19,895.05

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.