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Finding the Fourth Proportional to 47,943.43, 71,915.08 and 12,883.09

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Solution

The fourth proportional to 47,943.43, 71,915.08 and 12,883.09 is: 19,324.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,943.43 : 71,915.08 = 12,883.09 : x
  2. Step 2: Convert to fraction form
    47,943.43/71,915.08 = 12,883.09/x
  3. Step 3: Cross multiply
    47,943.43x = 71,915.08 × 12,883.09
  4. Step 4: Simplify right side
    47,943.43x = 926,488,300.42
  5. Step 5: Solve for x
    x = 926,488,300.42/47,943.43
  6. Step 6: Final answer
    x = 19,324.61

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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.