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Finding the Third Proportional to 14,185.13 and 15,688.69

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Solution

The third proportional to 14,185.13 and 15,688.69 is: 17,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185.13 : 15,688.69 = 15,688.69 : x
  2. Step 2: Convert to fraction form
    14,185.13/15,688.69 = 15,688.69/x
  3. Step 3: Cross multiply
    14,185.13x = 15,688.69 × 15,688.69
  4. Step 4: Simplify right side
    14,185.13x = 246,134,915.47
  5. Step 5: Solve for x
    x = 246,134,915.47/14,185.13
  6. Step 6: Final answer
    x = 17,351.62

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.