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Finding the Fourth Proportional to 44,364.60, 66,546.90 and 39,990.60

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Solution

The fourth proportional to 44,364.60, 66,546.90 and 39,990.60 is: 59,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,364.60 : 66,546.90 = 39,990.60 : x
  2. Step 2: Convert to fraction form
    44,364.60/66,546.90 = 39,990.60/x
  3. Step 3: Cross multiply
    44,364.60x = 66,546.90 × 39,990.60
  4. Step 4: Simplify right side
    44,364.60x = 2,661,250,459.14
  5. Step 5: Solve for x
    x = 2,661,250,459.14/44,364.60
  6. Step 6: Final answer
    x = 59,985.90

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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.