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Finding the Fourth Proportional to 57,016.76, 85,537.74 and 19,575.98

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Solution

The fourth proportional to 57,016.76, 85,537.74 and 19,575.98 is: 29,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,016.76 : 85,537.74 = 19,575.98 : x
  2. Step 2: Convert to fraction form
    57,016.76/85,537.74 = 19,575.98/x
  3. Step 3: Cross multiply
    57,016.76x = 85,537.74 × 19,575.98
  4. Step 4: Simplify right side
    57,016.76x = 1,674,485,087.49
  5. Step 5: Solve for x
    x = 1,674,485,087.49/57,016.76
  6. Step 6: Final answer
    x = 29,368.30

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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.