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Finding the Fourth Proportional to 29,075.30, 43,635.03 and 21,304.42

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Solution

The fourth proportional to 29,075.30, 43,635.03 and 21,304.42 is: 31,972.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,075.30 : 43,635.03 = 21,304.42 : x
  2. Step 2: Convert to fraction form
    29,075.30/43,635.03 = 21,304.42/x
  3. Step 3: Cross multiply
    29,075.30x = 43,635.03 × 21,304.42
  4. Step 4: Simplify right side
    29,075.30x = 929,619,005.83
  5. Step 5: Solve for x
    x = 929,619,005.83/29,075.30
  6. Step 6: Final answer
    x = 31,972.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.