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Finding the Fourth Proportional to 28,446.40, 42,645.50 and 11,796.04

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Solution

The fourth proportional to 28,446.40, 42,645.50 and 11,796.04 is: 17,684.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.40 : 42,645.50 = 11,796.04 : x
  2. Step 2: Convert to fraction form
    28,446.40/42,645.50 = 11,796.04/x
  3. Step 3: Cross multiply
    28,446.40x = 42,645.50 × 11,796.04
  4. Step 4: Simplify right side
    28,446.40x = 503,048,023.82
  5. Step 5: Solve for x
    x = 503,048,023.82/28,446.40
  6. Step 6: Final answer
    x = 17,684.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.