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Finding the Third Proportional to 12,324.66 and 19,312.80

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Solution

The third proportional to 12,324.66 and 19,312.80 is: 30,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.66 : 19,312.80 = 19,312.80 : x
  2. Step 2: Convert to fraction form
    12,324.66/19,312.80 = 19,312.80/x
  3. Step 3: Cross multiply
    12,324.66x = 19,312.80 × 19,312.80
  4. Step 4: Simplify right side
    12,324.66x = 372,984,424.90
  5. Step 5: Solve for x
    x = 372,984,424.90/12,324.66
  6. Step 6: Final answer
    x = 30,263.27

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.