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Finding the Fourth Proportional to 28,696.46, 43,049.15 and 14,648.88

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Solution

The fourth proportional to 28,696.46, 43,049.15 and 14,648.88 is: 21,975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.46 : 43,049.15 = 14,648.88 : x
  2. Step 2: Convert to fraction form
    28,696.46/43,049.15 = 14,648.88/x
  3. Step 3: Cross multiply
    28,696.46x = 43,049.15 × 14,648.88
  4. Step 4: Simplify right side
    28,696.46x = 630,621,759.21
  5. Step 5: Solve for x
    x = 630,621,759.21/28,696.46
  6. Step 6: Final answer
    x = 21,975.59

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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.