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Finding the Third Proportional to 21,352.50 and 34,306

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Solution

The third proportional to 21,352.50 and 34,306 is: 55,117.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.50 : 34,306 = 34,306 : x
  2. Step 2: Convert to fraction form
    21,352.50/34,306 = 34,306/x
  3. Step 3: Cross multiply
    21,352.50x = 34,306 × 34,306
  4. Step 4: Simplify right side
    21,352.50x = 1,176,901,636
  5. Step 5: Solve for x
    x = 1,176,901,636/21,352.50
  6. Step 6: Final answer
    x = 55,117.74

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.