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Finding the Fourth Proportional to 7,387,832.20, 11,081,748.30 and 7,387,832.20

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Solution

The fourth proportional to 7,387,832.20, 11,081,748.30 and 7,387,832.20 is: 11,081,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387,832.20 : 11,081,748.30 = 7,387,832.20 : x
  2. Step 2: Convert to fraction form
    7,387,832.20/11,081,748.30 = 7,387,832.20/x
  3. Step 3: Cross multiply
    7,387,832.20x = 11,081,748.30 × 7,387,832.20
  4. Step 4: Simplify right side
    7,387,832.20x = 81,870,096,923,035.27
  5. Step 5: Solve for x
    x = 81,870,096,923,035.27/7,387,832.20
  6. Step 6: Final answer
    x = 11,081,748.30

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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.