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Finding the Fourth Proportional to 39,798, 59,652.72 and 20,094.48

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Solution

The fourth proportional to 39,798, 59,652.72 and 20,094.48 is: 30,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,798 : 59,652.72 = 20,094.48 : x
  2. Step 2: Convert to fraction form
    39,798/59,652.72 = 20,094.48/x
  3. Step 3: Cross multiply
    39,798x = 59,652.72 × 20,094.48
  4. Step 4: Simplify right side
    39,798x = 1,198,690,388.99
  5. Step 5: Solve for x
    x = 1,198,690,388.99/39,798
  6. Step 6: Final answer
    x = 30,119.36

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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.