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Finding the Fourth Proportional to 35,310.94, 48,733.43 and 20,406.94

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Solution

The fourth proportional to 35,310.94, 48,733.43 and 20,406.94 is: 28,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,310.94 : 48,733.43 = 20,406.94 : x
  2. Step 2: Convert to fraction form
    35,310.94/48,733.43 = 20,406.94/x
  3. Step 3: Cross multiply
    35,310.94x = 48,733.43 × 20,406.94
  4. Step 4: Simplify right side
    35,310.94x = 994,499,958.14
  5. Step 5: Solve for x
    x = 994,499,958.14/35,310.94
  6. Step 6: Final answer
    x = 28,164.08

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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.