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Finding the Fourth Proportional to 63,863.64, 95,805.18 and 18,889.20

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Solution

The fourth proportional to 63,863.64, 95,805.18 and 18,889.20 is: 28,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,863.64 : 95,805.18 = 18,889.20 : x
  2. Step 2: Convert to fraction form
    63,863.64/95,805.18 = 18,889.20/x
  3. Step 3: Cross multiply
    63,863.64x = 95,805.18 × 18,889.20
  4. Step 4: Simplify right side
    63,863.64x = 1,809,683,206.06
  5. Step 5: Solve for x
    x = 1,809,683,206.06/63,863.64
  6. Step 6: Final answer
    x = 28,336.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.