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Finding the Fourth Proportional to 18,577.92, 25,638.21 and 10,194.42

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Solution

The fourth proportional to 18,577.92, 25,638.21 and 10,194.42 is: 14,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.92 : 25,638.21 = 10,194.42 : x
  2. Step 2: Convert to fraction form
    18,577.92/25,638.21 = 10,194.42/x
  3. Step 3: Cross multiply
    18,577.92x = 25,638.21 × 10,194.42
  4. Step 4: Simplify right side
    18,577.92x = 261,366,680.79
  5. Step 5: Solve for x
    x = 261,366,680.79/18,577.92
  6. Step 6: Final answer
    x = 14,068.67

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Half scale
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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.