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Finding the Third Proportional to 18,783 and 40,482

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Solution

The third proportional to 18,783 and 40,482 is: 87,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783 : 40,482 = 40,482 : x
  2. Step 2: Convert to fraction form
    18,783/40,482 = 40,482/x
  3. Step 3: Cross multiply
    18,783x = 40,482 × 40,482
  4. Step 4: Simplify right side
    18,783x = 1,638,792,324
  5. Step 5: Solve for x
    x = 1,638,792,324/18,783
  6. Step 6: Final answer
    x = 87,248.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.