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Finding the Fourth Proportional to 17,508,770.80, 26,259,469.80 and 7,411,721.20

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Solution

The fourth proportional to 17,508,770.80, 26,259,469.80 and 7,411,721.20 is: 11,116,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,508,770.80 : 26,259,469.80 = 7,411,721.20 : x
  2. Step 2: Convert to fraction form
    17,508,770.80/26,259,469.80 = 7,411,721.20/x
  3. Step 3: Cross multiply
    17,508,770.80x = 26,259,469.80 × 7,411,721.20
  4. Step 4: Simplify right side
    17,508,770.80x = 194,627,869,017,419.78
  5. Step 5: Solve for x
    x = 194,627,869,017,419.78/17,508,770.80
  6. Step 6: Final answer
    x = 11,116,021.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.