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Finding the Third Proportional to 20,382.50 and 31,367

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Solution

The third proportional to 20,382.50 and 31,367 is: 48,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,382.50 : 31,367 = 31,367 : x
  2. Step 2: Convert to fraction form
    20,382.50/31,367 = 31,367/x
  3. Step 3: Cross multiply
    20,382.50x = 31,367 × 31,367
  4. Step 4: Simplify right side
    20,382.50x = 983,888,689
  5. Step 5: Solve for x
    x = 983,888,689/20,382.50
  6. Step 6: Final answer
    x = 48,271.25

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.