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Finding the Fourth Proportional to 43,957.52, 65,913.04 and 20,244.36

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Solution

The fourth proportional to 43,957.52, 65,913.04 and 20,244.36 is: 30,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,957.52 : 65,913.04 = 20,244.36 : x
  2. Step 2: Convert to fraction form
    43,957.52/65,913.04 = 20,244.36/x
  3. Step 3: Cross multiply
    43,957.52x = 65,913.04 × 20,244.36
  4. Step 4: Simplify right side
    43,957.52x = 1,334,367,259.84
  5. Step 5: Solve for x
    x = 1,334,367,259.84/43,957.52
  6. Step 6: Final answer
    x = 30,355.84

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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.