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Finding the Fourth Proportional to 29,491.60, 44,255.68 and 11,961.60

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Solution

The fourth proportional to 29,491.60, 44,255.68 and 11,961.60 is: 17,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,491.60 : 44,255.68 = 11,961.60 : x
  2. Step 2: Convert to fraction form
    29,491.60/44,255.68 = 11,961.60/x
  3. Step 3: Cross multiply
    29,491.60x = 44,255.68 × 11,961.60
  4. Step 4: Simplify right side
    29,491.60x = 529,368,741.89
  5. Step 5: Solve for x
    x = 529,368,741.89/29,491.60
  6. Step 6: Final answer
    x = 17,949.81

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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.