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Finding the Third Proportional to 9,876.94 and 21,394.13

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Solution

The third proportional to 9,876.94 and 21,394.13 is: 46,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.94 : 21,394.13 = 21,394.13 : x
  2. Step 2: Convert to fraction form
    9,876.94/21,394.13 = 21,394.13/x
  3. Step 3: Cross multiply
    9,876.94x = 21,394.13 × 21,394.13
  4. Step 4: Simplify right side
    9,876.94x = 457,708,584.52
  5. Step 5: Solve for x
    x = 457,708,584.52/9,876.94
  6. Step 6: Final answer
    x = 46,341.14

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.