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Finding the Third Proportional to 19,369.13 and 21,151.13

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Solution

The third proportional to 19,369.13 and 21,151.13 is: 23,097.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,369.13 : 21,151.13 = 21,151.13 : x
  2. Step 2: Convert to fraction form
    19,369.13/21,151.13 = 21,151.13/x
  3. Step 3: Cross multiply
    19,369.13x = 21,151.13 × 21,151.13
  4. Step 4: Simplify right side
    19,369.13x = 447,370,088.77
  5. Step 5: Solve for x
    x = 447,370,088.77/19,369.13
  6. Step 6: Final answer
    x = 23,097.07

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.