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Finding the Fourth Proportional to 19,348, 26,705.94 and 12,634.66

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Solution

The fourth proportional to 19,348, 26,705.94 and 12,634.66 is: 17,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348 : 26,705.94 = 12,634.66 : x
  2. Step 2: Convert to fraction form
    19,348/26,705.94 = 12,634.66/x
  3. Step 3: Cross multiply
    19,348x = 26,705.94 × 12,634.66
  4. Step 4: Simplify right side
    19,348x = 337,420,471.88
  5. Step 5: Solve for x
    x = 337,420,471.88/19,348
  6. Step 6: Final answer
    x = 17,439.55

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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.