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Finding the Fourth Proportional to 8,619.23, 11,894.22 and 5,267.67

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Solution

The fourth proportional to 8,619.23, 11,894.22 and 5,267.67 is: 7,269.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.23 : 11,894.22 = 5,267.67 : x
  2. Step 2: Convert to fraction form
    8,619.23/11,894.22 = 5,267.67/x
  3. Step 3: Cross multiply
    8,619.23x = 11,894.22 × 5,267.67
  4. Step 4: Simplify right side
    8,619.23x = 62,654,825.87
  5. Step 5: Solve for x
    x = 62,654,825.87/8,619.23
  6. Step 6: Final answer
    x = 7,269.19

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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.