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Finding the Third Proportional to 19,410 and 28,356

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Solution

The third proportional to 19,410 and 28,356 is: 41,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410 : 28,356 = 28,356 : x
  2. Step 2: Convert to fraction form
    19,410/28,356 = 28,356/x
  3. Step 3: Cross multiply
    19,410x = 28,356 × 28,356
  4. Step 4: Simplify right side
    19,410x = 804,062,736
  5. Step 5: Solve for x
    x = 804,062,736/19,410
  6. Step 6: Final answer
    x = 41,425.18

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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.