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Finding the Fourth Proportional to 61,885.57, 92,813.47 and 28,573.61

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Solution

The fourth proportional to 61,885.57, 92,813.47 and 28,573.61 is: 42,853.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,885.57 : 92,813.47 = 28,573.61 : x
  2. Step 2: Convert to fraction form
    61,885.57/92,813.47 = 28,573.61/x
  3. Step 3: Cross multiply
    61,885.57x = 92,813.47 × 28,573.61
  4. Step 4: Simplify right side
    61,885.57x = 2,652,015,961.46
  5. Step 5: Solve for x
    x = 2,652,015,961.46/61,885.57
  6. Step 6: Final answer
    x = 42,853.54

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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.