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Finding the Fourth Proportional to 18,241.67, 25,173.55 and 9,858.17

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Solution

The fourth proportional to 18,241.67, 25,173.55 and 9,858.17 is: 13,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.67 : 25,173.55 = 9,858.17 : x
  2. Step 2: Convert to fraction form
    18,241.67/25,173.55 = 9,858.17/x
  3. Step 3: Cross multiply
    18,241.67x = 25,173.55 × 9,858.17
  4. Step 4: Simplify right side
    18,241.67x = 248,165,210.66
  5. Step 5: Solve for x
    x = 248,165,210.66/18,241.67
  6. Step 6: Final answer
    x = 13,604.30

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1.5x scale

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.