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Finding the Fourth Proportional to 18,492.68, 27,743.34 and 12,652.04

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Solution

The fourth proportional to 18,492.68, 27,743.34 and 12,652.04 is: 18,981.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.68 : 27,743.34 = 12,652.04 : x
  2. Step 2: Convert to fraction form
    18,492.68/27,743.34 = 12,652.04/x
  3. Step 3: Cross multiply
    18,492.68x = 27,743.34 × 12,652.04
  4. Step 4: Simplify right side
    18,492.68x = 351,009,847.41
  5. Step 5: Solve for x
    x = 351,009,847.41/18,492.68
  6. Step 6: Final answer
    x = 18,981.02

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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.