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Finding the Fourth Proportional to 68,023.72, 102,052.90 and 39,967.48

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Solution

The fourth proportional to 68,023.72, 102,052.90 and 39,967.48 is: 59,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,023.72 : 102,052.90 = 39,967.48 : x
  2. Step 2: Convert to fraction form
    68,023.72/102,052.90 = 39,967.48/x
  3. Step 3: Cross multiply
    68,023.72x = 102,052.90 × 39,967.48
  4. Step 4: Simplify right side
    68,023.72x = 4,078,797,239.69
  5. Step 5: Solve for x
    x = 4,078,797,239.69/68,023.72
  6. Step 6: Final answer
    x = 59,961.40

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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.