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Finding the Fourth Proportional to 8,674.22, 11,967.62 and 5,313.54

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Solution

The fourth proportional to 8,674.22, 11,967.62 and 5,313.54 is: 7,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.22 : 11,967.62 = 5,313.54 : x
  2. Step 2: Convert to fraction form
    8,674.22/11,967.62 = 5,313.54/x
  3. Step 3: Cross multiply
    8,674.22x = 11,967.62 × 5,313.54
  4. Step 4: Simplify right side
    8,674.22x = 63,590,427.57
  5. Step 5: Solve for x
    x = 63,590,427.57/8,674.22
  6. Step 6: Final answer
    x = 7,330.97

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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.