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Finding the Fourth Proportional to 17,872.69, 26,791.60 and 8,510.19

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Solution

The fourth proportional to 17,872.69, 26,791.60 and 8,510.19 is: 12,756.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.69 : 26,791.60 = 8,510.19 : x
  2. Step 2: Convert to fraction form
    17,872.69/26,791.60 = 8,510.19/x
  3. Step 3: Cross multiply
    17,872.69x = 26,791.60 × 8,510.19
  4. Step 4: Simplify right side
    17,872.69x = 228,001,606.40
  5. Step 5: Solve for x
    x = 228,001,606.40/17,872.69
  6. Step 6: Final answer
    x = 12,756.99

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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.