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Finding the Fourth Proportional to 33,235, 45,867.54 and 18,331

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Solution

The fourth proportional to 33,235, 45,867.54 and 18,331 is: 25,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,235 : 45,867.54 = 18,331 : x
  2. Step 2: Convert to fraction form
    33,235/45,867.54 = 18,331/x
  3. Step 3: Cross multiply
    33,235x = 45,867.54 × 18,331
  4. Step 4: Simplify right side
    33,235x = 840,797,875.74
  5. Step 5: Solve for x
    x = 840,797,875.74/33,235
  6. Step 6: Final answer
    x = 25,298.57

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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.