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Finding the Fourth Proportional to 34,992.44, 52,457.04 and 12,790.16

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Solution

The fourth proportional to 34,992.44, 52,457.04 and 12,790.16 is: 19,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,992.44 : 52,457.04 = 12,790.16 : x
  2. Step 2: Convert to fraction form
    34,992.44/52,457.04 = 12,790.16/x
  3. Step 3: Cross multiply
    34,992.44x = 52,457.04 × 12,790.16
  4. Step 4: Simplify right side
    34,992.44x = 670,933,934.73
  5. Step 5: Solve for x
    x = 670,933,934.73/34,992.44
  6. Step 6: Final answer
    x = 19,173.68

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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.