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Finding the Fourth Proportional to 17,905.71, 26,852.22 and 5,251.95

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Solution

The fourth proportional to 17,905.71, 26,852.22 and 5,251.95 is: 7,876.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,905.71 : 26,852.22 = 5,251.95 : x
  2. Step 2: Convert to fraction form
    17,905.71/26,852.22 = 5,251.95/x
  3. Step 3: Cross multiply
    17,905.71x = 26,852.22 × 5,251.95
  4. Step 4: Simplify right side
    17,905.71x = 141,026,516.83
  5. Step 5: Solve for x
    x = 141,026,516.83/17,905.71
  6. Step 6: Final answer
    x = 7,876.06

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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.