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Finding the Fourth Proportional to 28,840.25, 43,265.13 and 8,849.25

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Solution

The fourth proportional to 28,840.25, 43,265.13 and 8,849.25 is: 13,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.25 : 43,265.13 = 8,849.25 : x
  2. Step 2: Convert to fraction form
    28,840.25/43,265.13 = 8,849.25/x
  3. Step 3: Cross multiply
    28,840.25x = 43,265.13 × 8,849.25
  4. Step 4: Simplify right side
    28,840.25x = 382,863,951.65
  5. Step 5: Solve for x
    x = 382,863,951.65/28,840.25
  6. Step 6: Final answer
    x = 13,275.33

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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.