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Finding the Fourth Proportional to 28,951.56, 39,954.06 and 16,375.50

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Solution

The fourth proportional to 28,951.56, 39,954.06 and 16,375.50 is: 22,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,951.56 : 39,954.06 = 16,375.50 : x
  2. Step 2: Convert to fraction form
    28,951.56/39,954.06 = 16,375.50/x
  3. Step 3: Cross multiply
    28,951.56x = 39,954.06 × 16,375.50
  4. Step 4: Simplify right side
    28,951.56x = 654,267,709.53
  5. Step 5: Solve for x
    x = 654,267,709.53/28,951.56
  6. Step 6: Final answer
    x = 22,598.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.