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Finding the Fourth Proportional to 16,953.16, 25,435.26 and 8,189.08

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Solution

The fourth proportional to 16,953.16, 25,435.26 and 8,189.08 is: 12,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,953.16 : 25,435.26 = 8,189.08 : x
  2. Step 2: Convert to fraction form
    16,953.16/25,435.26 = 8,189.08/x
  3. Step 3: Cross multiply
    16,953.16x = 25,435.26 × 8,189.08
  4. Step 4: Simplify right side
    16,953.16x = 208,291,378.96
  5. Step 5: Solve for x
    x = 208,291,378.96/16,953.16
  6. Step 6: Final answer
    x = 12,286.29

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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.