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Finding the Fourth Proportional to 3,915.72, 5,873.58 and 1,967.46

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Solution

The fourth proportional to 3,915.72, 5,873.58 and 1,967.46 is: 2,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.72 : 5,873.58 = 1,967.46 : x
  2. Step 2: Convert to fraction form
    3,915.72/5,873.58 = 1,967.46/x
  3. Step 3: Cross multiply
    3,915.72x = 5,873.58 × 1,967.46
  4. Step 4: Simplify right side
    3,915.72x = 11,556,033.71
  5. Step 5: Solve for x
    x = 11,556,033.71/3,915.72
  6. Step 6: Final answer
    x = 2,951.19

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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.