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Finding the Fourth Proportional to 5,718,672.70, 8,581,119.45 and 2,353,219.90

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Solution

The fourth proportional to 5,718,672.70, 8,581,119.45 and 2,353,219.90 is: 3,531,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718,672.70 : 8,581,119.45 = 2,353,219.90 : x
  2. Step 2: Convert to fraction form
    5,718,672.70/8,581,119.45 = 2,353,219.90/x
  3. Step 3: Cross multiply
    5,718,672.70x = 8,581,119.45 × 2,353,219.90
  4. Step 4: Simplify right side
    5,718,672.70x = 20,193,261,054,017.05
  5. Step 5: Solve for x
    x = 20,193,261,054,017.05/5,718,672.70
  6. Step 6: Final answer
    x = 3,531,109.77

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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.