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Finding the Fourth Proportional to 8,235.72, 12,353.54 and 1,995.74

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Solution

The fourth proportional to 8,235.72, 12,353.54 and 1,995.74 is: 2,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.72 : 12,353.54 = 1,995.74 : x
  2. Step 2: Convert to fraction form
    8,235.72/12,353.54 = 1,995.74/x
  3. Step 3: Cross multiply
    8,235.72x = 12,353.54 × 1,995.74
  4. Step 4: Simplify right side
    8,235.72x = 24,654,453.92
  5. Step 5: Solve for x
    x = 24,654,453.92/8,235.72
  6. Step 6: Final answer
    x = 2,993.60

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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.