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Finding the Fourth Proportional to 28,900.74, 43,309.50 and 17,026.50

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Solution

The fourth proportional to 28,900.74, 43,309.50 and 17,026.50 is: 25,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.74 : 43,309.50 = 17,026.50 : x
  2. Step 2: Convert to fraction form
    28,900.74/43,309.50 = 17,026.50/x
  3. Step 3: Cross multiply
    28,900.74x = 43,309.50 × 17,026.50
  4. Step 4: Simplify right side
    28,900.74x = 737,409,201.75
  5. Step 5: Solve for x
    x = 737,409,201.75/28,900.74
  6. Step 6: Final answer
    x = 25,515.24

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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.