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Finding the Fourth Proportional to 35,991.80, 49,668.35 and 19,859.26

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Solution

The fourth proportional to 35,991.80, 49,668.35 and 19,859.26 is: 27,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,991.80 : 49,668.35 = 19,859.26 : x
  2. Step 2: Convert to fraction form
    35,991.80/49,668.35 = 19,859.26/x
  3. Step 3: Cross multiply
    35,991.80x = 49,668.35 × 19,859.26
  4. Step 4: Simplify right side
    35,991.80x = 986,376,328.78
  5. Step 5: Solve for x
    x = 986,376,328.78/35,991.80
  6. Step 6: Final answer
    x = 27,405.58

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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.