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Finding the Fourth Proportional to 43,270.62, 64,905.93 and 15,567.90

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Solution

The fourth proportional to 43,270.62, 64,905.93 and 15,567.90 is: 23,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,270.62 : 64,905.93 = 15,567.90 : x
  2. Step 2: Convert to fraction form
    43,270.62/64,905.93 = 15,567.90/x
  3. Step 3: Cross multiply
    43,270.62x = 64,905.93 × 15,567.90
  4. Step 4: Simplify right side
    43,270.62x = 1,010,449,027.65
  5. Step 5: Solve for x
    x = 1,010,449,027.65/43,270.62
  6. Step 6: Final answer
    x = 23,351.85

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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.