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Finding the Fourth Proportional to 15,847.94, 23,786.31 and 8,458.70

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Solution

The fourth proportional to 15,847.94, 23,786.31 and 8,458.70 is: 12,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,847.94 : 23,786.31 = 8,458.70 : x
  2. Step 2: Convert to fraction form
    15,847.94/23,786.31 = 8,458.70/x
  3. Step 3: Cross multiply
    15,847.94x = 23,786.31 × 8,458.70
  4. Step 4: Simplify right side
    15,847.94x = 201,201,260.40
  5. Step 5: Solve for x
    x = 201,201,260.40/15,847.94
  6. Step 6: Final answer
    x = 12,695.74

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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.