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Finding the Fourth Proportional to 16,863.80, 25,295.46 and 7,629.80

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Solution

The fourth proportional to 16,863.80, 25,295.46 and 7,629.80 is: 11,444.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,863.80 : 25,295.46 = 7,629.80 : x
  2. Step 2: Convert to fraction form
    16,863.80/25,295.46 = 7,629.80/x
  3. Step 3: Cross multiply
    16,863.80x = 25,295.46 × 7,629.80
  4. Step 4: Simplify right side
    16,863.80x = 192,999,300.71
  5. Step 5: Solve for x
    x = 192,999,300.71/16,863.80
  6. Step 6: Final answer
    x = 11,444.59

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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.