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Finding the Fourth Proportional to 6,791,656.23, 10,183,978.67 and 1,998,723.15

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Solution

The fourth proportional to 6,791,656.23, 10,183,978.67 and 1,998,723.15 is: 2,997,053.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791,656.23 : 10,183,978.67 = 1,998,723.15 : x
  2. Step 2: Convert to fraction form
    6,791,656.23/10,183,978.67 = 1,998,723.15/x
  3. Step 3: Cross multiply
    6,791,656.23x = 10,183,978.67 × 1,998,723.15
  4. Step 4: Simplify right side
    6,791,656.23x = 20,354,953,916,841.59
  5. Step 5: Solve for x
    x = 20,354,953,916,841.59/6,791,656.23
  6. Step 6: Final answer
    x = 2,997,053.04

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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.