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Finding the Fourth Proportional to 10,891,850.40, 16,312,892.40 and 6,412,874.40

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Solution

The fourth proportional to 10,891,850.40, 16,312,892.40 and 6,412,874.40 is: 9,604,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891,850.40 : 16,312,892.40 = 6,412,874.40 : x
  2. Step 2: Convert to fraction form
    10,891,850.40/16,312,892.40 = 6,412,874.40/x
  3. Step 3: Cross multiply
    10,891,850.40x = 16,312,892.40 × 6,412,874.40
  4. Step 4: Simplify right side
    10,891,850.40x = 104,612,530,061,914.56
  5. Step 5: Solve for x
    x = 104,612,530,061,914.56/10,891,850.40
  6. Step 6: Final answer
    x = 9,604,660.94

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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.