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Finding the Fourth Proportional to 18,817.82, 25,943.47 and 14,950.06

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Solution

The fourth proportional to 18,817.82, 25,943.47 and 14,950.06 is: 20,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.82 : 25,943.47 = 14,950.06 : x
  2. Step 2: Convert to fraction form
    18,817.82/25,943.47 = 14,950.06/x
  3. Step 3: Cross multiply
    18,817.82x = 25,943.47 × 14,950.06
  4. Step 4: Simplify right side
    18,817.82x = 387,856,433.11
  5. Step 5: Solve for x
    x = 387,856,433.11/18,817.82
  6. Step 6: Final answer
    x = 20,611.12

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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.