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Finding the Fourth Proportional to 18,225.96, 27,345.60 and 7,698.60

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Solution

The fourth proportional to 18,225.96, 27,345.60 and 7,698.60 is: 11,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.96 : 27,345.60 = 7,698.60 : x
  2. Step 2: Convert to fraction form
    18,225.96/27,345.60 = 7,698.60/x
  3. Step 3: Cross multiply
    18,225.96x = 27,345.60 × 7,698.60
  4. Step 4: Simplify right side
    18,225.96x = 210,522,836.16
  5. Step 5: Solve for x
    x = 210,522,836.16/18,225.96
  6. Step 6: Final answer
    x = 11,550.71

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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.