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Finding the Fourth Proportional to 8,894.34, 12,274.17 and 4,915.44

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Solution

The fourth proportional to 8,894.34, 12,274.17 and 4,915.44 is: 6,783.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.34 : 12,274.17 = 4,915.44 : x
  2. Step 2: Convert to fraction form
    8,894.34/12,274.17 = 4,915.44/x
  3. Step 3: Cross multiply
    8,894.34x = 12,274.17 × 4,915.44
  4. Step 4: Simplify right side
    8,894.34x = 60,332,921.61
  5. Step 5: Solve for x
    x = 60,332,921.61/8,894.34
  6. Step 6: Final answer
    x = 6,783.29

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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.