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Finding the Fourth Proportional to 9,792.60, 14,678.85 and 3,867.09

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Solution

The fourth proportional to 9,792.60, 14,678.85 and 3,867.09 is: 5,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792.60 : 14,678.85 = 3,867.09 : x
  2. Step 2: Convert to fraction form
    9,792.60/14,678.85 = 3,867.09/x
  3. Step 3: Cross multiply
    9,792.60x = 14,678.85 × 3,867.09
  4. Step 4: Simplify right side
    9,792.60x = 56,764,435.68
  5. Step 5: Solve for x
    x = 56,764,435.68/9,792.60
  6. Step 6: Final answer
    x = 5,796.66

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1.5x scale

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.