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Finding the Fourth Proportional to 35,573, 49,093.62 and 20,671.88

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Solution

The fourth proportional to 35,573, 49,093.62 and 20,671.88 is: 28,528.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,573 : 49,093.62 = 20,671.88 : x
  2. Step 2: Convert to fraction form
    35,573/49,093.62 = 20,671.88/x
  3. Step 3: Cross multiply
    35,573x = 49,093.62 × 20,671.88
  4. Step 4: Simplify right side
    35,573x = 1,014,857,421.41
  5. Step 5: Solve for x
    x = 1,014,857,421.41/35,573
  6. Step 6: Final answer
    x = 28,528.87

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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.