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Finding the Fourth Proportional to 15,863.80, 23,793.80 and 4,177.94

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Solution

The fourth proportional to 15,863.80, 23,793.80 and 4,177.94 is: 6,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.80 : 23,793.80 = 4,177.94 : x
  2. Step 2: Convert to fraction form
    15,863.80/23,793.80 = 4,177.94/x
  3. Step 3: Cross multiply
    15,863.80x = 23,793.80 × 4,177.94
  4. Step 4: Simplify right side
    15,863.80x = 99,409,068.77
  5. Step 5: Solve for x
    x = 99,409,068.77/15,863.80
  6. Step 6: Final answer
    x = 6,266.41

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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.