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Finding the Fourth Proportional to 33,247.72, 45,879.78 and 18,343.72

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Solution

The fourth proportional to 33,247.72, 45,879.78 and 18,343.72 is: 25,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,247.72 : 45,879.78 = 18,343.72 : x
  2. Step 2: Convert to fraction form
    33,247.72/45,879.78 = 18,343.72/x
  3. Step 3: Cross multiply
    33,247.72x = 45,879.78 × 18,343.72
  4. Step 4: Simplify right side
    33,247.72x = 841,605,837.98
  5. Step 5: Solve for x
    x = 841,605,837.98/33,247.72
  6. Step 6: Final answer
    x = 25,313.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.