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Finding the Fourth Proportional to 43,873.80, 65,810.70 and 25,211.40

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Solution

The fourth proportional to 43,873.80, 65,810.70 and 25,211.40 is: 37,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,873.80 : 65,810.70 = 25,211.40 : x
  2. Step 2: Convert to fraction form
    43,873.80/65,810.70 = 25,211.40/x
  3. Step 3: Cross multiply
    43,873.80x = 65,810.70 × 25,211.40
  4. Step 4: Simplify right side
    43,873.80x = 1,659,179,881.98
  5. Step 5: Solve for x
    x = 1,659,179,881.98/43,873.80
  6. Step 6: Final answer
    x = 37,817.10

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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.