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Finding the Fourth Proportional to 43,641.20, 65,310.60 and 26,123.60

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Solution

The fourth proportional to 43,641.20, 65,310.60 and 26,123.60 is: 39,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,641.20 : 65,310.60 = 26,123.60 : x
  2. Step 2: Convert to fraction form
    43,641.20/65,310.60 = 26,123.60/x
  3. Step 3: Cross multiply
    43,641.20x = 65,310.60 × 26,123.60
  4. Step 4: Simplify right side
    43,641.20x = 1,706,147,990.16
  5. Step 5: Solve for x
    x = 1,706,147,990.16/43,641.20
  6. Step 6: Final answer
    x = 39,094.89

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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.