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Finding the Fourth Proportional to 8,792.62, 13,186.32 and 4,789.39

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Solution

The fourth proportional to 8,792.62, 13,186.32 and 4,789.39 is: 7,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.62 : 13,186.32 = 4,789.39 : x
  2. Step 2: Convert to fraction form
    8,792.62/13,186.32 = 4,789.39/x
  3. Step 3: Cross multiply
    8,792.62x = 13,186.32 × 4,789.39
  4. Step 4: Simplify right side
    8,792.62x = 63,154,429.14
  5. Step 5: Solve for x
    x = 63,154,429.14/8,792.62
  6. Step 6: Final answer
    x = 7,182.66

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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.