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Finding the Fourth Proportional to 37,721.44, 52,059.54 and 20,954.44

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Solution

The fourth proportional to 37,721.44, 52,059.54 and 20,954.44 is: 28,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,721.44 : 52,059.54 = 20,954.44 : x
  2. Step 2: Convert to fraction form
    37,721.44/52,059.54 = 20,954.44/x
  3. Step 3: Cross multiply
    37,721.44x = 52,059.54 × 20,954.44
  4. Step 4: Simplify right side
    37,721.44x = 1,090,878,507.36
  5. Step 5: Solve for x
    x = 1,090,878,507.36/37,721.44
  6. Step 6: Final answer
    x = 28,919.32

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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.