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Finding the Fourth Proportional to 35,992.58, 53,988.48 and 12,299.90

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Solution

The fourth proportional to 35,992.58, 53,988.48 and 12,299.90 is: 18,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,992.58 : 53,988.48 = 12,299.90 : x
  2. Step 2: Convert to fraction form
    35,992.58/53,988.48 = 12,299.90/x
  3. Step 3: Cross multiply
    35,992.58x = 53,988.48 × 12,299.90
  4. Step 4: Simplify right side
    35,992.58x = 664,052,905.15
  5. Step 5: Solve for x
    x = 664,052,905.15/35,992.58
  6. Step 6: Final answer
    x = 18,449.72

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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.