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Finding the Fourth Proportional to 8,543,574.07, 11,788,863.91 and 5,188,994.73

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Solution

The fourth proportional to 8,543,574.07, 11,788,863.91 and 5,188,994.73 is: 7,160,042.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543,574.07 : 11,788,863.91 = 5,188,994.73 : x
  2. Step 2: Convert to fraction form
    8,543,574.07/11,788,863.91 = 5,188,994.73/x
  3. Step 3: Cross multiply
    8,543,574.07x = 11,788,863.91 × 5,188,994.73
  4. Step 4: Simplify right side
    8,543,574.07x = 61,172,352,774,777.25
  5. Step 5: Solve for x
    x = 61,172,352,774,777.25/8,543,574.07
  6. Step 6: Final answer
    x = 7,160,042.42

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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.