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Finding the Fourth Proportional to 17,406.70, 26,110.05 and 15,511.30

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Solution

The fourth proportional to 17,406.70, 26,110.05 and 15,511.30 is: 23,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,406.70 : 26,110.05 = 15,511.30 : x
  2. Step 2: Convert to fraction form
    17,406.70/26,110.05 = 15,511.30/x
  3. Step 3: Cross multiply
    17,406.70x = 26,110.05 × 15,511.30
  4. Step 4: Simplify right side
    17,406.70x = 405,000,818.57
  5. Step 5: Solve for x
    x = 405,000,818.57/17,406.70
  6. Step 6: Final answer
    x = 23,266.95

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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.