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Finding the Fourth Proportional to 65,845.44, 98,783.87 and 21,472.25

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Solution

The fourth proportional to 65,845.44, 98,783.87 and 21,472.25 is: 32,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,845.44 : 98,783.87 = 21,472.25 : x
  2. Step 2: Convert to fraction form
    65,845.44/98,783.87 = 21,472.25/x
  3. Step 3: Cross multiply
    65,845.44x = 98,783.87 × 21,472.25
  4. Step 4: Simplify right side
    65,845.44x = 2,121,111,351.33
  5. Step 5: Solve for x
    x = 2,121,111,351.33/65,845.44
  6. Step 6: Final answer
    x = 32,213.49

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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.