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Finding the Fourth Proportional to 18,407.27, 27,591.18 and 7,298.57

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Solution

The fourth proportional to 18,407.27, 27,591.18 and 7,298.57 is: 10,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.27 : 27,591.18 = 7,298.57 : x
  2. Step 2: Convert to fraction form
    18,407.27/27,591.18 = 7,298.57/x
  3. Step 3: Cross multiply
    18,407.27x = 27,591.18 × 7,298.57
  4. Step 4: Simplify right side
    18,407.27x = 201,376,020.66
  5. Step 5: Solve for x
    x = 201,376,020.66/18,407.27
  6. Step 6: Final answer
    x = 10,940.03

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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.