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Finding the Fourth Proportional to 38,705.88, 57,976.81 and 29,241.64

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Solution

The fourth proportional to 38,705.88, 57,976.81 and 29,241.64 is: 43,800.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,705.88 : 57,976.81 = 29,241.64 : x
  2. Step 2: Convert to fraction form
    38,705.88/57,976.81 = 29,241.64/x
  3. Step 3: Cross multiply
    38,705.88x = 57,976.81 × 29,241.64
  4. Step 4: Simplify right side
    38,705.88x = 1,695,337,005.74
  5. Step 5: Solve for x
    x = 1,695,337,005.74/38,705.88
  6. Step 6: Final answer
    x = 43,800.50

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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.