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Finding the Fourth Proportional to 28,902.74, 43,312.50 and 17,028.50

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Solution

The fourth proportional to 28,902.74, 43,312.50 and 17,028.50 is: 25,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.74 : 43,312.50 = 17,028.50 : x
  2. Step 2: Convert to fraction form
    28,902.74/43,312.50 = 17,028.50/x
  3. Step 3: Cross multiply
    28,902.74x = 43,312.50 × 17,028.50
  4. Step 4: Simplify right side
    28,902.74x = 737,546,906.25
  5. Step 5: Solve for x
    x = 737,546,906.25/28,902.74
  6. Step 6: Final answer
    x = 25,518.23

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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.