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Finding the Fourth Proportional to 43,504.60, 65,127.30 and 25,965.40

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Solution

The fourth proportional to 43,504.60, 65,127.30 and 25,965.40 is: 38,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,504.60 : 65,127.30 = 25,965.40 : x
  2. Step 2: Convert to fraction form
    43,504.60/65,127.30 = 25,965.40/x
  3. Step 3: Cross multiply
    43,504.60x = 65,127.30 × 25,965.40
  4. Step 4: Simplify right side
    43,504.60x = 1,691,056,395.42
  5. Step 5: Solve for x
    x = 1,691,056,395.42/43,504.60
  6. Step 6: Final answer
    x = 38,870.75

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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.