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Finding the Third Proportional to 63,609.75 and 86,386.50

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Solution

The third proportional to 63,609.75 and 86,386.50 is: 117,318.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,609.75 : 86,386.50 = 86,386.50 : x
  2. Step 2: Convert to fraction form
    63,609.75/86,386.50 = 86,386.50/x
  3. Step 3: Cross multiply
    63,609.75x = 86,386.50 × 86,386.50
  4. Step 4: Simplify right side
    63,609.75x = 7,462,627,382.25
  5. Step 5: Solve for x
    x = 7,462,627,382.25/63,609.75
  6. Step 6: Final answer
    x = 117,318.92

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These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.