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Finding the Third Proportional to 13,567.50 and 15,963.75

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Solution

The third proportional to 13,567.50 and 15,963.75 is: 18,783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.50 : 15,963.75 = 15,963.75 : x
  2. Step 2: Convert to fraction form
    13,567.50/15,963.75 = 15,963.75/x
  3. Step 3: Cross multiply
    13,567.50x = 15,963.75 × 15,963.75
  4. Step 4: Simplify right side
    13,567.50x = 254,841,314.06
  5. Step 5: Solve for x
    x = 254,841,314.06/13,567.50
  6. Step 6: Final answer
    x = 18,783.22

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.