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Finding the Fourth Proportional to 44,636.30, 66,965.72 and 20,609.01

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Solution

The fourth proportional to 44,636.30, 66,965.72 and 20,609.01 is: 30,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,636.30 : 66,965.72 = 20,609.01 : x
  2. Step 2: Convert to fraction form
    44,636.30/66,965.72 = 20,609.01/x
  3. Step 3: Cross multiply
    44,636.30x = 66,965.72 × 20,609.01
  4. Step 4: Simplify right side
    44,636.30x = 1,380,097,090.09
  5. Step 5: Solve for x
    x = 1,380,097,090.09/44,636.30
  6. Step 6: Final answer
    x = 30,918.72

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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.