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Finding the Fourth Proportional to 7,187.17, 10,793.01 and 3,906.67

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Solution

The fourth proportional to 7,187.17, 10,793.01 and 3,906.67 is: 5,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.17 : 10,793.01 = 3,906.67 : x
  2. Step 2: Convert to fraction form
    7,187.17/10,793.01 = 3,906.67/x
  3. Step 3: Cross multiply
    7,187.17x = 10,793.01 × 3,906.67
  4. Step 4: Simplify right side
    7,187.17x = 42,164,674.41
  5. Step 5: Solve for x
    x = 42,164,674.41/7,187.17
  6. Step 6: Final answer
    x = 5,866.66

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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.