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Finding the Fourth Proportional to 29,215.20, 43,909.20 and 25,413.60

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Solution

The fourth proportional to 29,215.20, 43,909.20 and 25,413.60 is: 38,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,215.20 : 43,909.20 = 25,413.60 : x
  2. Step 2: Convert to fraction form
    29,215.20/43,909.20 = 25,413.60/x
  3. Step 3: Cross multiply
    29,215.20x = 43,909.20 × 25,413.60
  4. Step 4: Simplify right side
    29,215.20x = 1,115,890,845.12
  5. Step 5: Solve for x
    x = 1,115,890,845.12/29,215.20
  6. Step 6: Final answer
    x = 38,195.56

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1.5x scale

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.