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Finding the Fourth Proportional to 38,683.67, 53,380.67 and 22,765.95

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Solution

The fourth proportional to 38,683.67, 53,380.67 and 22,765.95 is: 31,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,683.67 : 53,380.67 = 22,765.95 : x
  2. Step 2: Convert to fraction form
    38,683.67/53,380.67 = 22,765.95/x
  3. Step 3: Cross multiply
    38,683.67x = 53,380.67 × 22,765.95
  4. Step 4: Simplify right side
    38,683.67x = 1,215,261,550.36
  5. Step 5: Solve for x
    x = 1,215,261,550.36/38,683.67
  6. Step 6: Final answer
    x = 31,415.37

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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.