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Finding the Third Proportional to 28,410 and 43,206

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Solution

The third proportional to 28,410 and 43,206 is: 65,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410 : 43,206 = 43,206 : x
  2. Step 2: Convert to fraction form
    28,410/43,206 = 43,206/x
  3. Step 3: Cross multiply
    28,410x = 43,206 × 43,206
  4. Step 4: Simplify right side
    28,410x = 1,866,758,436
  5. Step 5: Solve for x
    x = 1,866,758,436/28,410
  6. Step 6: Final answer
    x = 65,707.79

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.