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Finding the Fourth Proportional to 19,235.96, 28,843.90 and 8,700.95

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Solution

The fourth proportional to 19,235.96, 28,843.90 and 8,700.95 is: 13,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.96 : 28,843.90 = 8,700.95 : x
  2. Step 2: Convert to fraction form
    19,235.96/28,843.90 = 8,700.95/x
  3. Step 3: Cross multiply
    19,235.96x = 28,843.90 × 8,700.95
  4. Step 4: Simplify right side
    19,235.96x = 250,969,382.06
  5. Step 5: Solve for x
    x = 250,969,382.06/19,235.96
  6. Step 6: Final answer
    x = 13,046.88

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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.