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Finding the Fourth Proportional to 8,318.61, 11,482.92 and 5,667.48

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Solution

The fourth proportional to 8,318.61, 11,482.92 and 5,667.48 is: 7,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.61 : 11,482.92 = 5,667.48 : x
  2. Step 2: Convert to fraction form
    8,318.61/11,482.92 = 5,667.48/x
  3. Step 3: Cross multiply
    8,318.61x = 11,482.92 × 5,667.48
  4. Step 4: Simplify right side
    8,318.61x = 65,079,219.44
  5. Step 5: Solve for x
    x = 65,079,219.44/8,318.61
  6. Step 6: Final answer
    x = 7,823.33

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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.