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Finding the Fourth Proportional to 18,492.03, 25,493.20 and 12,817.04

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Solution

The fourth proportional to 18,492.03, 25,493.20 and 12,817.04 is: 17,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.03 : 25,493.20 = 12,817.04 : x
  2. Step 2: Convert to fraction form
    18,492.03/25,493.20 = 12,817.04/x
  3. Step 3: Cross multiply
    18,492.03x = 25,493.20 × 12,817.04
  4. Step 4: Simplify right side
    18,492.03x = 326,747,204.62
  5. Step 5: Solve for x
    x = 326,747,204.62/18,492.03
  6. Step 6: Final answer
    x = 17,669.62

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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.