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Finding the Fourth Proportional to 18,607.44, 25,682.60 and 10,654.20

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Solution

The fourth proportional to 18,607.44, 25,682.60 and 10,654.20 is: 14,705.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.44 : 25,682.60 = 10,654.20 : x
  2. Step 2: Convert to fraction form
    18,607.44/25,682.60 = 10,654.20/x
  3. Step 3: Cross multiply
    18,607.44x = 25,682.60 × 10,654.20
  4. Step 4: Simplify right side
    18,607.44x = 273,627,556.92
  5. Step 5: Solve for x
    x = 273,627,556.92/18,607.44
  6. Step 6: Final answer
    x = 14,705.28

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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.