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Finding the Third Proportional to 19,856 and 26,490

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Solution

The third proportional to 19,856 and 26,490 is: 35,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856 : 26,490 = 26,490 : x
  2. Step 2: Convert to fraction form
    19,856/26,490 = 26,490/x
  3. Step 3: Cross multiply
    19,856x = 26,490 × 26,490
  4. Step 4: Simplify right side
    19,856x = 701,720,100
  5. Step 5: Solve for x
    x = 701,720,100/19,856
  6. Step 6: Final answer
    x = 35,340.46

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.