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Finding the Fourth Proportional to 40,353.24, 60,539.54 and 12,651.24

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Solution

The fourth proportional to 40,353.24, 60,539.54 and 12,651.24 is: 18,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,353.24 : 60,539.54 = 12,651.24 : x
  2. Step 2: Convert to fraction form
    40,353.24/60,539.54 = 12,651.24/x
  3. Step 3: Cross multiply
    40,353.24x = 60,539.54 × 12,651.24
  4. Step 4: Simplify right side
    40,353.24x = 765,900,250.03
  5. Step 5: Solve for x
    x = 765,900,250.03/40,353.24
  6. Step 6: Final answer
    x = 18,979.89

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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.