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Finding the Fourth Proportional to 8,998,939.64, 13,500,392.34 and 2,609,458.76

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Solution

The fourth proportional to 8,998,939.64, 13,500,392.34 and 2,609,458.76 is: 3,914,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998,939.64 : 13,500,392.34 = 2,609,458.76 : x
  2. Step 2: Convert to fraction form
    8,998,939.64/13,500,392.34 = 2,609,458.76/x
  3. Step 3: Cross multiply
    8,998,939.64x = 13,500,392.34 × 2,609,458.76
  4. Step 4: Simplify right side
    8,998,939.64x = 35,228,717,055,049.90
  5. Step 5: Solve for x
    x = 35,228,717,055,049.90/8,998,939.64
  6. Step 6: Final answer
    x = 3,914,763.12

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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.