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Finding the Fourth Proportional to 8,674.28, 11,966.08 and 5,270.37

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Solution

The fourth proportional to 8,674.28, 11,966.08 and 5,270.37 is: 7,270.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.28 : 11,966.08 = 5,270.37 : x
  2. Step 2: Convert to fraction form
    8,674.28/11,966.08 = 5,270.37/x
  3. Step 3: Cross multiply
    8,674.28x = 11,966.08 × 5,270.37
  4. Step 4: Simplify right side
    8,674.28x = 63,065,669.05
  5. Step 5: Solve for x
    x = 63,065,669.05/8,674.28
  6. Step 6: Final answer
    x = 7,270.42

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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.