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Finding the Fourth Proportional to 33,260, 45,898.86 and 18,356

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Solution

The fourth proportional to 33,260, 45,898.86 and 18,356 is: 25,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,260 : 45,898.86 = 18,356 : x
  2. Step 2: Convert to fraction form
    33,260/45,898.86 = 18,356/x
  3. Step 3: Cross multiply
    33,260x = 45,898.86 × 18,356
  4. Step 4: Simplify right side
    33,260x = 842,519,474.16
  5. Step 5: Solve for x
    x = 842,519,474.16/33,260
  6. Step 6: Final answer
    x = 25,331.31

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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.