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Finding the Fourth Proportional to 57,377.40, 86,071.40 and 22,319.72

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Solution

The fourth proportional to 57,377.40, 86,071.40 and 22,319.72 is: 33,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,377.40 : 86,071.40 = 22,319.72 : x
  2. Step 2: Convert to fraction form
    57,377.40/86,071.40 = 22,319.72/x
  3. Step 3: Cross multiply
    57,377.40x = 86,071.40 × 22,319.72
  4. Step 4: Simplify right side
    57,377.40x = 1,921,089,548.01
  5. Step 5: Solve for x
    x = 1,921,089,548.01/57,377.40
  6. Step 6: Final answer
    x = 33,481.64

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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.