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Finding the Fourth Proportional to 17,486,006.60, 26,230,978.20 and 5,355,373.70

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Solution

The fourth proportional to 17,486,006.60, 26,230,978.20 and 5,355,373.70 is: 8,033,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,486,006.60 : 26,230,978.20 = 5,355,373.70 : x
  2. Step 2: Convert to fraction form
    17,486,006.60/26,230,978.20 = 5,355,373.70/x
  3. Step 3: Cross multiply
    17,486,006.60x = 26,230,978.20 × 5,355,373.70
  4. Step 4: Simplify right side
    17,486,006.60x = 140,476,690,777,553.34
  5. Step 5: Solve for x
    x = 140,476,690,777,553.34/17,486,006.60
  6. Step 6: Final answer
    x = 8,033,663.37

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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.