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Finding the Fourth Proportional to 18,348.30, 27,487.08 and 10,958.67

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Solution

The fourth proportional to 18,348.30, 27,487.08 and 10,958.67 is: 16,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.30 : 27,487.08 = 10,958.67 : x
  2. Step 2: Convert to fraction form
    18,348.30/27,487.08 = 10,958.67/x
  3. Step 3: Cross multiply
    18,348.30x = 27,487.08 × 10,958.67
  4. Step 4: Simplify right side
    18,348.30x = 301,221,838.98
  5. Step 5: Solve for x
    x = 301,221,838.98/18,348.30
  6. Step 6: Final answer
    x = 16,416.88

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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.