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Finding the Fourth Proportional to 18,069.87, 27,104.84 and 11,835.10

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Solution

The fourth proportional to 18,069.87, 27,104.84 and 11,835.10 is: 17,752.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,069.87 : 27,104.84 = 11,835.10 : x
  2. Step 2: Convert to fraction form
    18,069.87/27,104.84 = 11,835.10/x
  3. Step 3: Cross multiply
    18,069.87x = 27,104.84 × 11,835.10
  4. Step 4: Simplify right side
    18,069.87x = 320,788,491.88
  5. Step 5: Solve for x
    x = 320,788,491.88/18,069.87
  6. Step 6: Final answer
    x = 17,752.67

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1.5x scale

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.