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Finding the Fourth Proportional to 8,917,213.44, 12,310,855.52 and 5,870,285.12

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Solution

The fourth proportional to 8,917,213.44, 12,310,855.52 and 5,870,285.12 is: 8,104,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917,213.44 : 12,310,855.52 = 5,870,285.12 : x
  2. Step 2: Convert to fraction form
    8,917,213.44/12,310,855.52 = 5,870,285.12/x
  3. Step 3: Cross multiply
    8,917,213.44x = 12,310,855.52 × 5,870,285.12
  4. Step 4: Simplify right side
    8,917,213.44x = 72,268,231,973,525.86
  5. Step 5: Solve for x
    x = 72,268,231,973,525.86/8,917,213.44
  6. Step 6: Final answer
    x = 8,104,351.48

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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.