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Finding the Fourth Proportional to 18,733.18, 28,102.54 and 7,049.14

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Solution

The fourth proportional to 18,733.18, 28,102.54 and 7,049.14 is: 10,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.18 : 28,102.54 = 7,049.14 : x
  2. Step 2: Convert to fraction form
    18,733.18/28,102.54 = 7,049.14/x
  3. Step 3: Cross multiply
    18,733.18x = 28,102.54 × 7,049.14
  4. Step 4: Simplify right side
    18,733.18x = 198,098,738.82
  5. Step 5: Solve for x
    x = 198,098,738.82/18,733.18
  6. Step 6: Final answer
    x = 10,574.75

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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.