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Finding the Fourth Proportional to 51,974.71, 71,725.04 and 28,101.32

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Solution

The fourth proportional to 51,974.71, 71,725.04 and 28,101.32 is: 38,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974.71 : 71,725.04 = 28,101.32 : x
  2. Step 2: Convert to fraction form
    51,974.71/71,725.04 = 28,101.32/x
  3. Step 3: Cross multiply
    51,974.71x = 71,725.04 × 28,101.32
  4. Step 4: Simplify right side
    51,974.71x = 2,015,568,301.05
  5. Step 5: Solve for x
    x = 2,015,568,301.05/51,974.71
  6. Step 6: Final answer
    x = 38,779.79

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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.