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Finding the Fourth Proportional to 33,246.32, 45,879.64 and 18,342

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Solution

The fourth proportional to 33,246.32, 45,879.64 and 18,342 is: 25,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,246.32 : 45,879.64 = 18,342 : x
  2. Step 2: Convert to fraction form
    33,246.32/45,879.64 = 18,342/x
  3. Step 3: Cross multiply
    33,246.32x = 45,879.64 × 18,342
  4. Step 4: Simplify right side
    33,246.32x = 841,524,356.88
  5. Step 5: Solve for x
    x = 841,524,356.88/33,246.32
  6. Step 6: Final answer
    x = 25,311.80

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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.