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Finding the Fourth Proportional to 28,916.25, 43,374.39 and 7,028.25

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Solution

The fourth proportional to 28,916.25, 43,374.39 and 7,028.25 is: 10,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.25 : 43,374.39 = 7,028.25 : x
  2. Step 2: Convert to fraction form
    28,916.25/43,374.39 = 7,028.25/x
  3. Step 3: Cross multiply
    28,916.25x = 43,374.39 × 7,028.25
  4. Step 4: Simplify right side
    28,916.25x = 304,846,056.52
  5. Step 5: Solve for x
    x = 304,846,056.52/28,916.25
  6. Step 6: Final answer
    x = 10,542.38

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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.