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Finding the Third Proportional to 15,639.75 and 22,393.13

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Solution

The third proportional to 15,639.75 and 22,393.13 is: 32,062.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.75 : 22,393.13 = 22,393.13 : x
  2. Step 2: Convert to fraction form
    15,639.75/22,393.13 = 22,393.13/x
  3. Step 3: Cross multiply
    15,639.75x = 22,393.13 × 22,393.13
  4. Step 4: Simplify right side
    15,639.75x = 501,452,047.27
  5. Step 5: Solve for x
    x = 501,452,047.27/15,639.75
  6. Step 6: Final answer
    x = 32,062.66

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.