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Finding the Fourth Proportional to 50,482, 69,665.43 and 28,126

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Solution

The fourth proportional to 50,482, 69,665.43 and 28,126 is: 38,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,482 : 69,665.43 = 28,126 : x
  2. Step 2: Convert to fraction form
    50,482/69,665.43 = 28,126/x
  3. Step 3: Cross multiply
    50,482x = 69,665.43 × 28,126
  4. Step 4: Simplify right side
    50,482x = 1,959,409,884.18
  5. Step 5: Solve for x
    x = 1,959,409,884.18/50,482
  6. Step 6: Final answer
    x = 38,814.03

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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.