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Finding the Fourth Proportional to 29,786.68, 44,680.41 and 12,915.82

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Solution

The fourth proportional to 29,786.68, 44,680.41 and 12,915.82 is: 19,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,786.68 : 44,680.41 = 12,915.82 : x
  2. Step 2: Convert to fraction form
    29,786.68/44,680.41 = 12,915.82/x
  3. Step 3: Cross multiply
    29,786.68x = 44,680.41 × 12,915.82
  4. Step 4: Simplify right side
    29,786.68x = 577,084,133.09
  5. Step 5: Solve for x
    x = 577,084,133.09/29,786.68
  6. Step 6: Final answer
    x = 19,373.90

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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.