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Finding the Fourth Proportional to 28,896.80, 43,272.30 and 23,064.80

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Solution

The fourth proportional to 28,896.80, 43,272.30 and 23,064.80 is: 34,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.80 : 43,272.30 = 23,064.80 : x
  2. Step 2: Convert to fraction form
    28,896.80/43,272.30 = 23,064.80/x
  3. Step 3: Cross multiply
    28,896.80x = 43,272.30 × 23,064.80
  4. Step 4: Simplify right side
    28,896.80x = 998,066,945.04
  5. Step 5: Solve for x
    x = 998,066,945.04/28,896.80
  6. Step 6: Final answer
    x = 34,539.01

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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.