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Finding the Fourth Proportional to 18,492.62, 25,512.64 and 11,777.04

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Solution

The fourth proportional to 18,492.62, 25,512.64 and 11,777.04 is: 16,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.62 : 25,512.64 = 11,777.04 : x
  2. Step 2: Convert to fraction form
    18,492.62/25,512.64 = 11,777.04/x
  3. Step 3: Cross multiply
    18,492.62x = 25,512.64 × 11,777.04
  4. Step 4: Simplify right side
    18,492.62x = 300,463,352.34
  5. Step 5: Solve for x
    x = 300,463,352.34/18,492.62
  6. Step 6: Final answer
    x = 16,247.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.