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Finding the Fourth Proportional to 18,608.59, 25,669.06 and 12,236.32

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Solution

The fourth proportional to 18,608.59, 25,669.06 and 12,236.32 is: 16,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.59 : 25,669.06 = 12,236.32 : x
  2. Step 2: Convert to fraction form
    18,608.59/25,669.06 = 12,236.32/x
  3. Step 3: Cross multiply
    18,608.59x = 25,669.06 × 12,236.32
  4. Step 4: Simplify right side
    18,608.59x = 314,094,832.26
  5. Step 5: Solve for x
    x = 314,094,832.26/18,608.59
  6. Step 6: Final answer
    x = 16,879.02

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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.