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Finding the Fourth Proportional to 8,246.62, 12,366.09 and 4,784.86

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Solution

The fourth proportional to 8,246.62, 12,366.09 and 4,784.86 is: 7,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,246.62 : 12,366.09 = 4,784.86 : x
  2. Step 2: Convert to fraction form
    8,246.62/12,366.09 = 4,784.86/x
  3. Step 3: Cross multiply
    8,246.62x = 12,366.09 × 4,784.86
  4. Step 4: Simplify right side
    8,246.62x = 59,170,009.40
  5. Step 5: Solve for x
    x = 59,170,009.40/8,246.62
  6. Step 6: Final answer
    x = 7,175.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.