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Finding the Fourth Proportional to 19,895.12, 29,847.96 and 8,052.56

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Solution

The fourth proportional to 19,895.12, 29,847.96 and 8,052.56 is: 12,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.12 : 29,847.96 = 8,052.56 : x
  2. Step 2: Convert to fraction form
    19,895.12/29,847.96 = 8,052.56/x
  3. Step 3: Cross multiply
    19,895.12x = 29,847.96 × 8,052.56
  4. Step 4: Simplify right side
    19,895.12x = 240,352,488.78
  5. Step 5: Solve for x
    x = 240,352,488.78/19,895.12
  6. Step 6: Final answer
    x = 12,080.98

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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.