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Finding the Fourth Proportional to 7,698.67, 11,548.08 and 2,151.67

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Solution

The fourth proportional to 7,698.67, 11,548.08 and 2,151.67 is: 3,227.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698.67 : 11,548.08 = 2,151.67 : x
  2. Step 2: Convert to fraction form
    7,698.67/11,548.08 = 2,151.67/x
  3. Step 3: Cross multiply
    7,698.67x = 11,548.08 × 2,151.67
  4. Step 4: Simplify right side
    7,698.67x = 24,847,657.29
  5. Step 5: Solve for x
    x = 24,847,657.29/7,698.67
  6. Step 6: Final answer
    x = 3,227.53

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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.