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Finding the Fourth Proportional to 65,229.48, 97,846.79 and 20,255.54

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Solution

The fourth proportional to 65,229.48, 97,846.79 and 20,255.54 is: 30,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,229.48 : 97,846.79 = 20,255.54 : x
  2. Step 2: Convert to fraction form
    65,229.48/97,846.79 = 20,255.54/x
  3. Step 3: Cross multiply
    65,229.48x = 97,846.79 × 20,255.54
  4. Step 4: Simplify right side
    65,229.48x = 1,981,938,978.20
  5. Step 5: Solve for x
    x = 1,981,938,978.20/65,229.48
  6. Step 6: Final answer
    x = 30,384.10

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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.