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Finding the Fourth Proportional to 57,450.71, 86,063.74 and 37,668.89

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Solution

The fourth proportional to 57,450.71, 86,063.74 and 37,668.89 is: 56,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,450.71 : 86,063.74 = 37,668.89 : x
  2. Step 2: Convert to fraction form
    57,450.71/86,063.74 = 37,668.89/x
  3. Step 3: Cross multiply
    57,450.71x = 86,063.74 × 37,668.89
  4. Step 4: Simplify right side
    57,450.71x = 3,241,925,555.05
  5. Step 5: Solve for x
    x = 3,241,925,555.05/57,450.71
  6. Step 6: Final answer
    x = 56,429.69

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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.