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Finding the Fourth Proportional to 61,885.85, 92,813.89 and 28,573.89

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Solution

The fourth proportional to 61,885.85, 92,813.89 and 28,573.89 is: 42,853.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,885.85 : 92,813.89 = 28,573.89 : x
  2. Step 2: Convert to fraction form
    61,885.85/92,813.89 = 28,573.89/x
  3. Step 3: Cross multiply
    61,885.85x = 92,813.89 × 28,573.89
  4. Step 4: Simplify right side
    61,885.85x = 2,652,054,119.86
  5. Step 5: Solve for x
    x = 2,652,054,119.86/61,885.85
  6. Step 6: Final answer
    x = 42,853.97

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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.