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Finding the Fourth Proportional to 18,241.74, 25,173.63 and 9,858.24

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Solution

The fourth proportional to 18,241.74, 25,173.63 and 9,858.24 is: 13,604.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.74 : 25,173.63 = 9,858.24 : x
  2. Step 2: Convert to fraction form
    18,241.74/25,173.63 = 9,858.24/x
  3. Step 3: Cross multiply
    18,241.74x = 25,173.63 × 9,858.24
  4. Step 4: Simplify right side
    18,241.74x = 248,167,686.21
  5. Step 5: Solve for x
    x = 248,167,686.21/18,241.74
  6. Step 6: Final answer
    x = 13,604.39

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Half scale
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Double scale
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Similar ratio
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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.