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Finding the Third Proportional to 28,988 and 45,192

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Solution

The third proportional to 28,988 and 45,192 is: 70,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988 : 45,192 = 45,192 : x
  2. Step 2: Convert to fraction form
    28,988/45,192 = 45,192/x
  3. Step 3: Cross multiply
    28,988x = 45,192 × 45,192
  4. Step 4: Simplify right side
    28,988x = 2,042,316,864
  5. Step 5: Solve for x
    x = 2,042,316,864/28,988
  6. Step 6: Final answer
    x = 70,453.87

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.