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Finding the Fourth Proportional to 13,245.78, 19,873.77 and 5,845.01

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Solution

The fourth proportional to 13,245.78, 19,873.77 and 5,845.01 is: 8,769.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.78 : 19,873.77 = 5,845.01 : x
  2. Step 2: Convert to fraction form
    13,245.78/19,873.77 = 5,845.01/x
  3. Step 3: Cross multiply
    13,245.78x = 19,873.77 × 5,845.01
  4. Step 4: Simplify right side
    13,245.78x = 116,162,355.16
  5. Step 5: Solve for x
    x = 116,162,355.16/13,245.78
  6. Step 6: Final answer
    x = 8,769.76

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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.