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Finding the Fourth Proportional to 16,993.88, 25,457.80 and 8,433.16

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Solution

The fourth proportional to 16,993.88, 25,457.80 and 8,433.16 is: 12,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,993.88 : 25,457.80 = 8,433.16 : x
  2. Step 2: Convert to fraction form
    16,993.88/25,457.80 = 8,433.16/x
  3. Step 3: Cross multiply
    16,993.88x = 25,457.80 × 8,433.16
  4. Step 4: Simplify right side
    16,993.88x = 214,689,700.65
  5. Step 5: Solve for x
    x = 214,689,700.65/16,993.88
  6. Step 6: Final answer
    x = 12,633.35

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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.