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Finding the Fourth Proportional to 13,449.84, 20,174.85 and 4,684.73

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Solution

The fourth proportional to 13,449.84, 20,174.85 and 4,684.73 is: 7,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.84 : 20,174.85 = 4,684.73 : x
  2. Step 2: Convert to fraction form
    13,449.84/20,174.85 = 4,684.73/x
  3. Step 3: Cross multiply
    13,449.84x = 20,174.85 × 4,684.73
  4. Step 4: Simplify right side
    13,449.84x = 94,513,725.04
  5. Step 5: Solve for x
    x = 94,513,725.04/13,449.84
  6. Step 6: Final answer
    x = 7,027.13

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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.