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Finding the Third Proportional to 28,770 and 45,207

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Solution

The third proportional to 28,770 and 45,207 is: 71,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770 : 45,207 = 45,207 : x
  2. Step 2: Convert to fraction form
    28,770/45,207 = 45,207/x
  3. Step 3: Cross multiply
    28,770x = 45,207 × 45,207
  4. Step 4: Simplify right side
    28,770x = 2,043,672,849
  5. Step 5: Solve for x
    x = 2,043,672,849/28,770
  6. Step 6: Final answer
    x = 71,034.86

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.