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Finding the Fourth Proportional to 47,683.80, 65,918.34 and 36,408.60

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Solution

The fourth proportional to 47,683.80, 65,918.34 and 36,408.60 is: 50,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,683.80 : 65,918.34 = 36,408.60 : x
  2. Step 2: Convert to fraction form
    47,683.80/65,918.34 = 36,408.60/x
  3. Step 3: Cross multiply
    47,683.80x = 65,918.34 × 36,408.60
  4. Step 4: Simplify right side
    47,683.80x = 2,399,994,473.72
  5. Step 5: Solve for x
    x = 2,399,994,473.72/47,683.80
  6. Step 6: Final answer
    x = 50,331.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.