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Finding the Fourth Proportional to 33,855.34, 46,720.50 and 18,747.67

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Solution

The fourth proportional to 33,855.34, 46,720.50 and 18,747.67 is: 25,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,855.34 : 46,720.50 = 18,747.67 : x
  2. Step 2: Convert to fraction form
    33,855.34/46,720.50 = 18,747.67/x
  3. Step 3: Cross multiply
    33,855.34x = 46,720.50 × 18,747.67
  4. Step 4: Simplify right side
    33,855.34x = 875,900,715.25
  5. Step 5: Solve for x
    x = 875,900,715.25/33,855.34
  6. Step 6: Final answer
    x = 25,871.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.