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Finding the Fourth Proportional to 18,849.27, 28,274.64 and 7,006.17

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Solution

The fourth proportional to 18,849.27, 28,274.64 and 7,006.17 is: 10,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.27 : 28,274.64 = 7,006.17 : x
  2. Step 2: Convert to fraction form
    18,849.27/28,274.64 = 7,006.17/x
  3. Step 3: Cross multiply
    18,849.27x = 28,274.64 × 7,006.17
  4. Step 4: Simplify right side
    18,849.27x = 198,096,934.53
  5. Step 5: Solve for x
    x = 198,096,934.53/18,849.27
  6. Step 6: Final answer
    x = 10,509.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.