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Finding the Fourth Proportional to 14,113.80, 21,170.70 and 14,016.60

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Solution

The fourth proportional to 14,113.80, 21,170.70 and 14,016.60 is: 21,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.80 : 21,170.70 = 14,016.60 : x
  2. Step 2: Convert to fraction form
    14,113.80/21,170.70 = 14,016.60/x
  3. Step 3: Cross multiply
    14,113.80x = 21,170.70 × 14,016.60
  4. Step 4: Simplify right side
    14,113.80x = 296,741,233.62
  5. Step 5: Solve for x
    x = 296,741,233.62/14,113.80
  6. Step 6: Final answer
    x = 21,024.90

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Similar ratio
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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.