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Finding the Fourth Proportional to 19,299, 26,614.35 and 12,589.77

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Solution

The fourth proportional to 19,299, 26,614.35 and 12,589.77 is: 17,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299 : 26,614.35 = 12,589.77 : x
  2. Step 2: Convert to fraction form
    19,299/26,614.35 = 12,589.77/x
  3. Step 3: Cross multiply
    19,299x = 26,614.35 × 12,589.77
  4. Step 4: Simplify right side
    19,299x = 335,068,545.20
  5. Step 5: Solve for x
    x = 335,068,545.20/19,299
  6. Step 6: Final answer
    x = 17,361.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.