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Finding the Fourth Proportional to 5,945.74, 8,915.60 and 3,481.30

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Solution

The fourth proportional to 5,945.74, 8,915.60 and 3,481.30 is: 5,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,945.74 : 8,915.60 = 3,481.30 : x
  2. Step 2: Convert to fraction form
    5,945.74/8,915.60 = 3,481.30/x
  3. Step 3: Cross multiply
    5,945.74x = 8,915.60 × 3,481.30
  4. Step 4: Simplify right side
    5,945.74x = 31,037,878.28
  5. Step 5: Solve for x
    x = 31,037,878.28/5,945.74
  6. Step 6: Final answer
    x = 5,220.19

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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.