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Finding the Fourth Proportional to 14,706.97, 20,279.15 and 13,773.85

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Solution

The fourth proportional to 14,706.97, 20,279.15 and 13,773.85 is: 18,992.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,706.97 : 20,279.15 = 13,773.85 : x
  2. Step 2: Convert to fraction form
    14,706.97/20,279.15 = 13,773.85/x
  3. Step 3: Cross multiply
    14,706.97x = 20,279.15 × 13,773.85
  4. Step 4: Simplify right side
    14,706.97x = 279,321,901.36
  5. Step 5: Solve for x
    x = 279,321,901.36/14,706.97
  6. Step 6: Final answer
    x = 18,992.48

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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.