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Finding the Third Proportional to 7,293 and 11,686.50

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Solution

The third proportional to 7,293 and 11,686.50 is: 18,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,293 : 11,686.50 = 11,686.50 : x
  2. Step 2: Convert to fraction form
    7,293/11,686.50 = 11,686.50/x
  3. Step 3: Cross multiply
    7,293x = 11,686.50 × 11,686.50
  4. Step 4: Simplify right side
    7,293x = 136,574,282.25
  5. Step 5: Solve for x
    x = 136,574,282.25/7,293
  6. Step 6: Final answer
    x = 18,726.76

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.