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Finding the Fourth Proportional to 17,759.70, 26,614.15 and 13,042.70

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Solution

The fourth proportional to 17,759.70, 26,614.15 and 13,042.70 is: 19,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.70 : 26,614.15 = 13,042.70 : x
  2. Step 2: Convert to fraction form
    17,759.70/26,614.15 = 13,042.70/x
  3. Step 3: Cross multiply
    17,759.70x = 26,614.15 × 13,042.70
  4. Step 4: Simplify right side
    17,759.70x = 347,120,374.21
  5. Step 5: Solve for x
    x = 347,120,374.21/17,759.70
  6. Step 6: Final answer
    x = 19,545.40

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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.