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Finding the Fourth Proportional to 13,661,663.80, 20,475,906.90 and 6,080,582.20

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Solution

The fourth proportional to 13,661,663.80, 20,475,906.90 and 6,080,582.20 is: 9,113,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661,663.80 : 20,475,906.90 = 6,080,582.20 : x
  2. Step 2: Convert to fraction form
    13,661,663.80/20,475,906.90 = 6,080,582.20/x
  3. Step 3: Cross multiply
    13,661,663.80x = 20,475,906.90 × 6,080,582.20
  4. Step 4: Simplify right side
    13,661,663.80x = 124,505,435,024,997.17
  5. Step 5: Solve for x
    x = 124,505,435,024,997.17/13,661,663.80
  6. Step 6: Final answer
    x = 9,113,489.90

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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.