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Finding the Fourth Proportional to 57,081.70, 85,626.65 and 17,641.89

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Solution

The fourth proportional to 57,081.70, 85,626.65 and 17,641.89 is: 26,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,081.70 : 85,626.65 = 17,641.89 : x
  2. Step 2: Convert to fraction form
    57,081.70/85,626.65 = 17,641.89/x
  3. Step 3: Cross multiply
    57,081.70x = 85,626.65 × 17,641.89
  4. Step 4: Simplify right side
    57,081.70x = 1,510,615,940.37
  5. Step 5: Solve for x
    x = 1,510,615,940.37/57,081.70
  6. Step 6: Final answer
    x = 26,464.10

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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.