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Finding the Fourth Proportional to 33,245.76, 45,879.36 and 18,341.76

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Solution

The fourth proportional to 33,245.76, 45,879.36 and 18,341.76 is: 25,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,245.76 : 45,879.36 = 18,341.76 : x
  2. Step 2: Convert to fraction form
    33,245.76/45,879.36 = 18,341.76/x
  3. Step 3: Cross multiply
    33,245.76x = 45,879.36 × 18,341.76
  4. Step 4: Simplify right side
    33,245.76x = 841,508,210.07
  5. Step 5: Solve for x
    x = 841,508,210.07/33,245.76
  6. Step 6: Final answer
    x = 25,311.75

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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.