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Finding the Fourth Proportional to 8,890.87, 13,338.24 and 3,047.62

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Solution

The fourth proportional to 8,890.87, 13,338.24 and 3,047.62 is: 4,572.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.87 : 13,338.24 = 3,047.62 : x
  2. Step 2: Convert to fraction form
    8,890.87/13,338.24 = 3,047.62/x
  3. Step 3: Cross multiply
    8,890.87x = 13,338.24 × 3,047.62
  4. Step 4: Simplify right side
    8,890.87x = 40,649,886.99
  5. Step 5: Solve for x
    x = 40,649,886.99/8,890.87
  6. Step 6: Final answer
    x = 4,572.09

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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.