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Finding the Fourth Proportional to 28,744.80, 43,149.60 and 17,064.60

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Solution

The fourth proportional to 28,744.80, 43,149.60 and 17,064.60 is: 25,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.80 : 43,149.60 = 17,064.60 : x
  2. Step 2: Convert to fraction form
    28,744.80/43,149.60 = 17,064.60/x
  3. Step 3: Cross multiply
    28,744.80x = 43,149.60 × 17,064.60
  4. Step 4: Simplify right side
    28,744.80x = 736,330,664.16
  5. Step 5: Solve for x
    x = 736,330,664.16/28,744.80
  6. Step 6: Final answer
    x = 25,616.13

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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.