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Finding the Fourth Proportional to 17,961.51, 26,941.95 and 5,649.51

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Solution

The fourth proportional to 17,961.51, 26,941.95 and 5,649.51 is: 8,474.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,961.51 : 26,941.95 = 5,649.51 : x
  2. Step 2: Convert to fraction form
    17,961.51/26,941.95 = 5,649.51/x
  3. Step 3: Cross multiply
    17,961.51x = 26,941.95 × 5,649.51
  4. Step 4: Simplify right side
    17,961.51x = 152,208,815.94
  5. Step 5: Solve for x
    x = 152,208,815.94/17,961.51
  6. Step 6: Final answer
    x = 8,474.17

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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.