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Finding the Third Proportional to 28,257.75 and 61,434

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Solution

The third proportional to 28,257.75 and 61,434 is: 133,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.75 : 61,434 = 61,434 : x
  2. Step 2: Convert to fraction form
    28,257.75/61,434 = 61,434/x
  3. Step 3: Cross multiply
    28,257.75x = 61,434 × 61,434
  4. Step 4: Simplify right side
    28,257.75x = 3,774,136,356
  5. Step 5: Solve for x
    x = 3,774,136,356/28,257.75
  6. Step 6: Final answer
    x = 133,561.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.