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Finding the Third Proportional to 13,132.75 and 19,709

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Solution

The third proportional to 13,132.75 and 19,709 is: 29,578.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.75 : 19,709 = 19,709 : x
  2. Step 2: Convert to fraction form
    13,132.75/19,709 = 19,709/x
  3. Step 3: Cross multiply
    13,132.75x = 19,709 × 19,709
  4. Step 4: Simplify right side
    13,132.75x = 388,444,681
  5. Step 5: Solve for x
    x = 388,444,681/13,132.75
  6. Step 6: Final answer
    x = 29,578.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.