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Finding the Fourth Proportional to 33,225, 45,850.98 and 18,321

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Solution

The fourth proportional to 33,225, 45,850.98 and 18,321 is: 25,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,225 : 45,850.98 = 18,321 : x
  2. Step 2: Convert to fraction form
    33,225/45,850.98 = 18,321/x
  3. Step 3: Cross multiply
    33,225x = 45,850.98 × 18,321
  4. Step 4: Simplify right side
    33,225x = 840,035,804.58
  5. Step 5: Solve for x
    x = 840,035,804.58/33,225
  6. Step 6: Final answer
    x = 25,283.24

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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.