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Finding the Fourth Proportional to 14,622.40, 20,523.20 and 14,622.40

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Solution

The fourth proportional to 14,622.40, 20,523.20 and 14,622.40 is: 20,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622.40 : 20,523.20 = 14,622.40 : x
  2. Step 2: Convert to fraction form
    14,622.40/20,523.20 = 14,622.40/x
  3. Step 3: Cross multiply
    14,622.40x = 20,523.20 × 14,622.40
  4. Step 4: Simplify right side
    14,622.40x = 300,098,439.68
  5. Step 5: Solve for x
    x = 300,098,439.68/14,622.40
  6. Step 6: Final answer
    x = 20,523.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.