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Finding the Fourth Proportional to 13,492.70, 20,224.20 and 4,723.10

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Solution

The fourth proportional to 13,492.70, 20,224.20 and 4,723.10 is: 7,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.70 : 20,224.20 = 4,723.10 : x
  2. Step 2: Convert to fraction form
    13,492.70/20,224.20 = 4,723.10/x
  3. Step 3: Cross multiply
    13,492.70x = 20,224.20 × 4,723.10
  4. Step 4: Simplify right side
    13,492.70x = 95,520,919.02
  5. Step 5: Solve for x
    x = 95,520,919.02/13,492.70
  6. Step 6: Final answer
    x = 7,079.45

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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.