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Finding the Fourth Proportional to 43,999.40, 65,901.90 and 17,690.60

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Solution

The fourth proportional to 43,999.40, 65,901.90 and 17,690.60 is: 26,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.40 : 65,901.90 = 17,690.60 : x
  2. Step 2: Convert to fraction form
    43,999.40/65,901.90 = 17,690.60/x
  3. Step 3: Cross multiply
    43,999.40x = 65,901.90 × 17,690.60
  4. Step 4: Simplify right side
    43,999.40x = 1,165,844,152.14
  5. Step 5: Solve for x
    x = 1,165,844,152.14/43,999.40
  6. Step 6: Final answer
    x = 26,496.82

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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.