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Finding the Fourth Proportional to 18,492.60, 27,736.20 and 5,343.60

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Solution

The fourth proportional to 18,492.60, 27,736.20 and 5,343.60 is: 8,014.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.60 : 27,736.20 = 5,343.60 : x
  2. Step 2: Convert to fraction form
    18,492.60/27,736.20 = 5,343.60/x
  3. Step 3: Cross multiply
    18,492.60x = 27,736.20 × 5,343.60
  4. Step 4: Simplify right side
    18,492.60x = 148,211,158.32
  5. Step 5: Solve for x
    x = 148,211,158.32/18,492.60
  6. Step 6: Final answer
    x = 8,014.62

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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.