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Finding the Third Proportional to 8,508.75 and 12,772.50

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Solution

The third proportional to 8,508.75 and 12,772.50 is: 19,172.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.75 : 12,772.50 = 12,772.50 : x
  2. Step 2: Convert to fraction form
    8,508.75/12,772.50 = 12,772.50/x
  3. Step 3: Cross multiply
    8,508.75x = 12,772.50 × 12,772.50
  4. Step 4: Simplify right side
    8,508.75x = 163,136,756.25
  5. Step 5: Solve for x
    x = 163,136,756.25/8,508.75
  6. Step 6: Final answer
    x = 19,172.82

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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.