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Finding the Fourth Proportional to 10,964,707.74, 15,126,546.96 and 6,611,375.61

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Solution

The fourth proportional to 10,964,707.74, 15,126,546.96 and 6,611,375.61 is: 9,120,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964,707.74 : 15,126,546.96 = 6,611,375.61 : x
  2. Step 2: Convert to fraction form
    10,964,707.74/15,126,546.96 = 6,611,375.61/x
  3. Step 3: Cross multiply
    10,964,707.74x = 15,126,546.96 × 6,611,375.61
  4. Step 4: Simplify right side
    10,964,707.74x = 100,007,283,634,863.66
  5. Step 5: Solve for x
    x = 100,007,283,634,863.66/10,964,707.74
  6. Step 6: Final answer
    x = 9,120,834.41

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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.