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Finding the Fourth Proportional to 18,504.20, 25,964.20 and 18,504.20

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Solution

The fourth proportional to 18,504.20, 25,964.20 and 18,504.20 is: 25,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.20 : 25,964.20 = 18,504.20 : x
  2. Step 2: Convert to fraction form
    18,504.20/25,964.20 = 18,504.20/x
  3. Step 3: Cross multiply
    18,504.20x = 25,964.20 × 18,504.20
  4. Step 4: Simplify right side
    18,504.20x = 480,446,749.64
  5. Step 5: Solve for x
    x = 480,446,749.64/18,504.20
  6. Step 6: Final answer
    x = 25,964.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.