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Finding the Fourth Proportional to 18,856.08, 25,999.92 and 12,040.92

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Solution

The fourth proportional to 18,856.08, 25,999.92 and 12,040.92 is: 16,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.08 : 25,999.92 = 12,040.92 : x
  2. Step 2: Convert to fraction form
    18,856.08/25,999.92 = 12,040.92/x
  3. Step 3: Cross multiply
    18,856.08x = 25,999.92 × 12,040.92
  4. Step 4: Simplify right side
    18,856.08x = 313,062,956.73
  5. Step 5: Solve for x
    x = 313,062,956.73/18,856.08
  6. Step 6: Final answer
    x = 16,602.76

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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.