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Finding the Fourth Proportional to 17,070.30, 25,588.42 and 8,169.21

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Solution

The fourth proportional to 17,070.30, 25,588.42 and 8,169.21 is: 12,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,070.30 : 25,588.42 = 8,169.21 : x
  2. Step 2: Convert to fraction form
    17,070.30/25,588.42 = 8,169.21/x
  3. Step 3: Cross multiply
    17,070.30x = 25,588.42 × 8,169.21
  4. Step 4: Simplify right side
    17,070.30x = 209,037,156.13
  5. Step 5: Solve for x
    x = 209,037,156.13/17,070.30
  6. Step 6: Final answer
    x = 12,245.66

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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.