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Finding the Fourth Proportional to 7,229.27, 9,978.26 and 4,717.67

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Solution

The fourth proportional to 7,229.27, 9,978.26 and 4,717.67 is: 6,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.27 : 9,978.26 = 4,717.67 : x
  2. Step 2: Convert to fraction form
    7,229.27/9,978.26 = 4,717.67/x
  3. Step 3: Cross multiply
    7,229.27x = 9,978.26 × 4,717.67
  4. Step 4: Simplify right side
    7,229.27x = 47,074,064.37
  5. Step 5: Solve for x
    x = 47,074,064.37/7,229.27
  6. Step 6: Final answer
    x = 6,511.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.