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Finding the Fourth Proportional to 18,674.73, 28,012.86 and 6,195.87

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Solution

The fourth proportional to 18,674.73, 28,012.86 and 6,195.87 is: 9,294.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.73 : 28,012.86 = 6,195.87 : x
  2. Step 2: Convert to fraction form
    18,674.73/28,012.86 = 6,195.87/x
  3. Step 3: Cross multiply
    18,674.73x = 28,012.86 × 6,195.87
  4. Step 4: Simplify right side
    18,674.73x = 173,564,038.89
  5. Step 5: Solve for x
    x = 173,564,038.89/18,674.73
  6. Step 6: Final answer
    x = 9,294.06

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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.