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Finding the Fourth Proportional to 61,857.72, 92,741.15 and 19,713.54

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Solution

The fourth proportional to 61,857.72, 92,741.15 and 19,713.54 is: 29,555.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,857.72 : 92,741.15 = 19,713.54 : x
  2. Step 2: Convert to fraction form
    61,857.72/92,741.15 = 19,713.54/x
  3. Step 3: Cross multiply
    61,857.72x = 92,741.15 × 19,713.54
  4. Step 4: Simplify right side
    61,857.72x = 1,828,256,271.60
  5. Step 5: Solve for x
    x = 1,828,256,271.60/61,857.72
  6. Step 6: Final answer
    x = 29,555.83

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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.