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Finding the Fourth Proportional to 6,487,495.54, 9,728,247.98 and 2,387,786.86

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Solution

The fourth proportional to 6,487,495.54, 9,728,247.98 and 2,387,786.86 is: 3,580,577.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487,495.54 : 9,728,247.98 = 2,387,786.86 : x
  2. Step 2: Convert to fraction form
    6,487,495.54/9,728,247.98 = 2,387,786.86/x
  3. Step 3: Cross multiply
    6,487,495.54x = 9,728,247.98 × 2,387,786.86
  4. Step 4: Simplify right side
    6,487,495.54x = 23,228,982,697,465.54
  5. Step 5: Solve for x
    x = 23,228,982,697,465.54/6,487,495.54
  6. Step 6: Final answer
    x = 3,580,577.83

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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.