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Finding the Fourth Proportional to 15,043.84, 20,736.48 and 11,852.08

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Solution

The fourth proportional to 15,043.84, 20,736.48 and 11,852.08 is: 16,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.84 : 20,736.48 = 11,852.08 : x
  2. Step 2: Convert to fraction form
    15,043.84/20,736.48 = 11,852.08/x
  3. Step 3: Cross multiply
    15,043.84x = 20,736.48 × 11,852.08
  4. Step 4: Simplify right side
    15,043.84x = 245,770,419.88
  5. Step 5: Solve for x
    x = 245,770,419.88/15,043.84
  6. Step 6: Final answer
    x = 16,336.95

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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.