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Finding the Fourth Proportional to 6,376,998.72, 8,800,200.48 and 3,515,430.72

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Solution

The fourth proportional to 6,376,998.72, 8,800,200.48 and 3,515,430.72 is: 4,851,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376,998.72 : 8,800,200.48 = 3,515,430.72 : x
  2. Step 2: Convert to fraction form
    6,376,998.72/8,800,200.48 = 3,515,430.72/x
  3. Step 3: Cross multiply
    6,376,998.72x = 8,800,200.48 × 3,515,430.72
  4. Step 4: Simplify right side
    6,376,998.72x = 30,936,495,109,550.75
  5. Step 5: Solve for x
    x = 30,936,495,109,550.75/6,376,998.72
  6. Step 6: Final answer
    x = 4,851,262.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.