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Finding the Fourth Proportional to 18,472.50, 25,492.05 and 11,860.02

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Solution

The fourth proportional to 18,472.50, 25,492.05 and 11,860.02 is: 16,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.50 : 25,492.05 = 11,860.02 : x
  2. Step 2: Convert to fraction form
    18,472.50/25,492.05 = 11,860.02/x
  3. Step 3: Cross multiply
    18,472.50x = 25,492.05 × 11,860.02
  4. Step 4: Simplify right side
    18,472.50x = 302,336,222.84
  5. Step 5: Solve for x
    x = 302,336,222.84/18,472.50
  6. Step 6: Final answer
    x = 16,366.83

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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.