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Finding the Fourth Proportional to 18,606.08, 25,657.08 and 12,947.24

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Solution

The fourth proportional to 18,606.08, 25,657.08 and 12,947.24 is: 17,853.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.08 : 25,657.08 = 12,947.24 : x
  2. Step 2: Convert to fraction form
    18,606.08/25,657.08 = 12,947.24/x
  3. Step 3: Cross multiply
    18,606.08x = 25,657.08 × 12,947.24
  4. Step 4: Simplify right side
    18,606.08x = 332,188,372.46
  5. Step 5: Solve for x
    x = 332,188,372.46/18,606.08
  6. Step 6: Final answer
    x = 17,853.75

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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.