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Finding the Fourth Proportional to 57,030.21, 85,555.04 and 17,579.97

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Solution

The fourth proportional to 57,030.21, 85,555.04 and 17,579.97 is: 26,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.21 : 85,555.04 = 17,579.97 : x
  2. Step 2: Convert to fraction form
    57,030.21/85,555.04 = 17,579.97/x
  3. Step 3: Cross multiply
    57,030.21x = 85,555.04 × 17,579.97
  4. Step 4: Simplify right side
    57,030.21x = 1,504,054,948.65
  5. Step 5: Solve for x
    x = 1,504,054,948.65/57,030.21
  6. Step 6: Final answer
    x = 26,372.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.