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Finding the Fourth Proportional to 43,464.60, 65,172.60 and 20,062.08

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Solution

The fourth proportional to 43,464.60, 65,172.60 and 20,062.08 is: 30,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,464.60 : 65,172.60 = 20,062.08 : x
  2. Step 2: Convert to fraction form
    43,464.60/65,172.60 = 20,062.08/x
  3. Step 3: Cross multiply
    43,464.60x = 65,172.60 × 20,062.08
  4. Step 4: Simplify right side
    43,464.60x = 1,307,497,915.01
  5. Step 5: Solve for x
    x = 1,307,497,915.01/43,464.60
  6. Step 6: Final answer
    x = 30,081.90

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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.