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Finding the Fourth Proportional to 3,915.63, 5,404.19 and 2,344.23

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Solution

The fourth proportional to 3,915.63, 5,404.19 and 2,344.23 is: 3,235.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.63 : 5,404.19 = 2,344.23 : x
  2. Step 2: Convert to fraction form
    3,915.63/5,404.19 = 2,344.23/x
  3. Step 3: Cross multiply
    3,915.63x = 5,404.19 × 2,344.23
  4. Step 4: Simplify right side
    3,915.63x = 12,668,652.60
  5. Step 5: Solve for x
    x = 12,668,652.60/3,915.63
  6. Step 6: Final answer
    x = 3,235.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.