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Finding the Third Proportional to 19,755.50 and 28,853

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Solution

The third proportional to 19,755.50 and 28,853 is: 42,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,755.50 : 28,853 = 28,853 : x
  2. Step 2: Convert to fraction form
    19,755.50/28,853 = 28,853/x
  3. Step 3: Cross multiply
    19,755.50x = 28,853 × 28,853
  4. Step 4: Simplify right side
    19,755.50x = 832,495,609
  5. Step 5: Solve for x
    x = 832,495,609/19,755.50
  6. Step 6: Final answer
    x = 42,139.94

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.