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Finding the Fourth Proportional to 63,191.88, 94,786.80 and 18,818.88

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Solution

The fourth proportional to 63,191.88, 94,786.80 and 18,818.88 is: 28,228.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,191.88 : 94,786.80 = 18,818.88 : x
  2. Step 2: Convert to fraction form
    63,191.88/94,786.80 = 18,818.88/x
  3. Step 3: Cross multiply
    63,191.88x = 94,786.80 × 18,818.88
  4. Step 4: Simplify right side
    63,191.88x = 1,783,781,414.78
  5. Step 5: Solve for x
    x = 1,783,781,414.78/63,191.88
  6. Step 6: Final answer
    x = 28,228.02

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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.