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Finding the Fourth Proportional to 18,507.36, 27,734.58 and 17,509.44

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Solution

The fourth proportional to 18,507.36, 27,734.58 and 17,509.44 is: 26,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.36 : 27,734.58 = 17,509.44 : x
  2. Step 2: Convert to fraction form
    18,507.36/27,734.58 = 17,509.44/x
  3. Step 3: Cross multiply
    18,507.36x = 27,734.58 × 17,509.44
  4. Step 4: Simplify right side
    18,507.36x = 485,616,964.44
  5. Step 5: Solve for x
    x = 485,616,964.44/18,507.36
  6. Step 6: Final answer
    x = 26,239.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.