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Finding the Fourth Proportional to 17,385.80, 26,093.10 and 8,040.20

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Solution

The fourth proportional to 17,385.80, 26,093.10 and 8,040.20 is: 12,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.80 : 26,093.10 = 8,040.20 : x
  2. Step 2: Convert to fraction form
    17,385.80/26,093.10 = 8,040.20/x
  3. Step 3: Cross multiply
    17,385.80x = 26,093.10 × 8,040.20
  4. Step 4: Simplify right side
    17,385.80x = 209,793,742.62
  5. Step 5: Solve for x
    x = 209,793,742.62/17,385.80
  6. Step 6: Final answer
    x = 12,066.96

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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.