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Finding the Fourth Proportional to 18,348,611.40, 27,522,917.10 and 7,560,359.10

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Solution

The fourth proportional to 18,348,611.40, 27,522,917.10 and 7,560,359.10 is: 11,340,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348,611.40 : 27,522,917.10 = 7,560,359.10 : x
  2. Step 2: Convert to fraction form
    18,348,611.40/27,522,917.10 = 7,560,359.10/x
  3. Step 3: Cross multiply
    18,348,611.40x = 27,522,917.10 × 7,560,359.10
  4. Step 4: Simplify right side
    18,348,611.40x = 208,083,136,755,530.62
  5. Step 5: Solve for x
    x = 208,083,136,755,530.62/18,348,611.40
  6. Step 6: Final answer
    x = 11,340,538.65

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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.