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Finding the Third Proportional to 15,106.50 and 19,868.63

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Solution

The third proportional to 15,106.50 and 19,868.63 is: 26,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.50 : 19,868.63 = 19,868.63 : x
  2. Step 2: Convert to fraction form
    15,106.50/19,868.63 = 19,868.63/x
  3. Step 3: Cross multiply
    15,106.50x = 19,868.63 × 19,868.63
  4. Step 4: Simplify right side
    15,106.50x = 394,762,259.39
  5. Step 5: Solve for x
    x = 394,762,259.39/15,106.50
  6. Step 6: Final answer
    x = 26,131.95

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.