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Finding the Fourth Proportional to 33,251, 45,886.38 and 18,347

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Solution

The fourth proportional to 33,251, 45,886.38 and 18,347 is: 25,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,251 : 45,886.38 = 18,347 : x
  2. Step 2: Convert to fraction form
    33,251/45,886.38 = 18,347/x
  3. Step 3: Cross multiply
    33,251x = 45,886.38 × 18,347
  4. Step 4: Simplify right side
    33,251x = 841,877,413.86
  5. Step 5: Solve for x
    x = 841,877,413.86/33,251
  6. Step 6: Final answer
    x = 25,318.86

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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.