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Finding the Fourth Proportional to 29,164.80, 43,718.40 and 14,361.60

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Solution

The fourth proportional to 29,164.80, 43,718.40 and 14,361.60 is: 21,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,164.80 : 43,718.40 = 14,361.60 : x
  2. Step 2: Convert to fraction form
    29,164.80/43,718.40 = 14,361.60/x
  3. Step 3: Cross multiply
    29,164.80x = 43,718.40 × 14,361.60
  4. Step 4: Simplify right side
    29,164.80x = 627,866,173.44
  5. Step 5: Solve for x
    x = 627,866,173.44/29,164.80
  6. Step 6: Final answer
    x = 21,528.22

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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.