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Finding the Fourth Proportional to 43,667.88, 65,495.44 and 21,475.30

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Solution

The fourth proportional to 43,667.88, 65,495.44 and 21,475.30 is: 32,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,667.88 : 65,495.44 = 21,475.30 : x
  2. Step 2: Convert to fraction form
    43,667.88/65,495.44 = 21,475.30/x
  3. Step 3: Cross multiply
    43,667.88x = 65,495.44 × 21,475.30
  4. Step 4: Simplify right side
    43,667.88x = 1,406,534,222.63
  5. Step 5: Solve for x
    x = 1,406,534,222.63/43,667.88
  6. Step 6: Final answer
    x = 32,209.81

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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.