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Finding the Third Proportional to 19,818 and 29,620.69

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Solution

The third proportional to 19,818 and 29,620.69 is: 44,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818 : 29,620.69 = 29,620.69 : x
  2. Step 2: Convert to fraction form
    19,818/29,620.69 = 29,620.69/x
  3. Step 3: Cross multiply
    19,818x = 29,620.69 × 29,620.69
  4. Step 4: Simplify right side
    19,818x = 877,385,127.97
  5. Step 5: Solve for x
    x = 877,385,127.97/19,818
  6. Step 6: Final answer
    x = 44,272.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.