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Finding the Fourth Proportional to 18,164.36, 25,068.62 and 12,208.48

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Solution

The fourth proportional to 18,164.36, 25,068.62 and 12,208.48 is: 16,848.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.36 : 25,068.62 = 12,208.48 : x
  2. Step 2: Convert to fraction form
    18,164.36/25,068.62 = 12,208.48/x
  3. Step 3: Cross multiply
    18,164.36x = 25,068.62 × 12,208.48
  4. Step 4: Simplify right side
    18,164.36x = 306,049,745.90
  5. Step 5: Solve for x
    x = 306,049,745.90/18,164.36
  6. Step 6: Final answer
    x = 16,848.91

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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.