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Finding the Fourth Proportional to 23,321.76, 34,992.88 and 7,741.60

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Solution

The fourth proportional to 23,321.76, 34,992.88 and 7,741.60 is: 11,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,321.76 : 34,992.88 = 7,741.60 : x
  2. Step 2: Convert to fraction form
    23,321.76/34,992.88 = 7,741.60/x
  3. Step 3: Cross multiply
    23,321.76x = 34,992.88 × 7,741.60
  4. Step 4: Simplify right side
    23,321.76x = 270,900,879.81
  5. Step 5: Solve for x
    x = 270,900,879.81/23,321.76
  6. Step 6: Final answer
    x = 11,615.80

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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.