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Finding the Third Proportional to 19,316.81 and 40,743.56

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Solution

The third proportional to 19,316.81 and 40,743.56 is: 85,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.81 : 40,743.56 = 40,743.56 : x
  2. Step 2: Convert to fraction form
    19,316.81/40,743.56 = 40,743.56/x
  3. Step 3: Cross multiply
    19,316.81x = 40,743.56 × 40,743.56
  4. Step 4: Simplify right side
    19,316.81x = 1,660,037,885.19
  5. Step 5: Solve for x
    x = 1,660,037,885.19/19,316.81
  6. Step 6: Final answer
    x = 85,937.46

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.