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Finding the Third Proportional to 19,237.50 and 39,432

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Solution

The third proportional to 19,237.50 and 39,432 is: 80,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,237.50 : 39,432 = 39,432 : x
  2. Step 2: Convert to fraction form
    19,237.50/39,432 = 39,432/x
  3. Step 3: Cross multiply
    19,237.50x = 39,432 × 39,432
  4. Step 4: Simplify right side
    19,237.50x = 1,554,882,624
  5. Step 5: Solve for x
    x = 1,554,882,624/19,237.50
  6. Step 6: Final answer
    x = 80,825.61

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.