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Finding the Fourth Proportional to 28,912.75, 43,369.13 and 7,024.75

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Solution

The fourth proportional to 28,912.75, 43,369.13 and 7,024.75 is: 10,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.75 : 43,369.13 = 7,024.75 : x
  2. Step 2: Convert to fraction form
    28,912.75/43,369.13 = 7,024.75/x
  3. Step 3: Cross multiply
    28,912.75x = 43,369.13 × 7,024.75
  4. Step 4: Simplify right side
    28,912.75x = 304,657,295.97
  5. Step 5: Solve for x
    x = 304,657,295.97/28,912.75
  6. Step 6: Final answer
    x = 10,537.13

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1.5x scale

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.