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Finding the Fourth Proportional to 14,524.80, 21,754.80 and 11,211.90

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Solution

The fourth proportional to 14,524.80, 21,754.80 and 11,211.90 is: 16,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,524.80 : 21,754.80 = 11,211.90 : x
  2. Step 2: Convert to fraction form
    14,524.80/21,754.80 = 11,211.90/x
  3. Step 3: Cross multiply
    14,524.80x = 21,754.80 × 11,211.90
  4. Step 4: Simplify right side
    14,524.80x = 243,912,642.12
  5. Step 5: Solve for x
    x = 243,912,642.12/14,524.80
  6. Step 6: Final answer
    x = 16,792.84

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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.