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Finding the Third Proportional to 38,699.63 and 79,039.13

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Solution

The third proportional to 38,699.63 and 79,039.13 is: 161,427.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,699.63 : 79,039.13 = 79,039.13 : x
  2. Step 2: Convert to fraction form
    38,699.63/79,039.13 = 79,039.13/x
  3. Step 3: Cross multiply
    38,699.63x = 79,039.13 × 79,039.13
  4. Step 4: Simplify right side
    38,699.63x = 6,247,183,280.77
  5. Step 5: Solve for x
    x = 6,247,183,280.77/38,699.63
  6. Step 6: Final answer
    x = 161,427.49

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.