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Finding the Fourth Proportional to 10,693,886.70, 16,040,830.05 and 8,922,416.70

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Solution

The fourth proportional to 10,693,886.70, 16,040,830.05 and 8,922,416.70 is: 13,383,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,693,886.70 : 16,040,830.05 = 8,922,416.70 : x
  2. Step 2: Convert to fraction form
    10,693,886.70/16,040,830.05 = 8,922,416.70/x
  3. Step 3: Cross multiply
    10,693,886.70x = 16,040,830.05 × 8,922,416.70
  4. Step 4: Simplify right side
    10,693,886.70x = 143,122,969,919,981.84
  5. Step 5: Solve for x
    x = 143,122,969,919,981.84/10,693,886.70
  6. Step 6: Final answer
    x = 13,383,625.05

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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.