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Finding the Fourth Proportional to 18,241.64, 25,173.47 and 9,858.14

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Solution

The fourth proportional to 18,241.64, 25,173.47 and 9,858.14 is: 13,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.64 : 25,173.47 = 9,858.14 : x
  2. Step 2: Convert to fraction form
    18,241.64/25,173.47 = 9,858.14/x
  3. Step 3: Cross multiply
    18,241.64x = 25,173.47 × 9,858.14
  4. Step 4: Simplify right side
    18,241.64x = 248,163,591.55
  5. Step 5: Solve for x
    x = 248,163,591.55/18,241.64
  6. Step 6: Final answer
    x = 13,604.24

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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.