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Finding the Fourth Proportional to 18,492.99, 25,518.56 and 10,942.17

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Solution

The fourth proportional to 18,492.99, 25,518.56 and 10,942.17 is: 15,099.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.99 : 25,518.56 = 10,942.17 : x
  2. Step 2: Convert to fraction form
    18,492.99/25,518.56 = 10,942.17/x
  3. Step 3: Cross multiply
    18,492.99x = 25,518.56 × 10,942.17
  4. Step 4: Simplify right side
    18,492.99x = 279,228,366.96
  5. Step 5: Solve for x
    x = 279,228,366.96/18,492.99
  6. Step 6: Final answer
    x = 15,099.15

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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.