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Finding the Fourth Proportional to 48,578.80, 72,870.06 and 16,982.68

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Solution

The fourth proportional to 48,578.80, 72,870.06 and 16,982.68 is: 25,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,578.80 : 72,870.06 = 16,982.68 : x
  2. Step 2: Convert to fraction form
    48,578.80/72,870.06 = 16,982.68/x
  3. Step 3: Cross multiply
    48,578.80x = 72,870.06 × 16,982.68
  4. Step 4: Simplify right side
    48,578.80x = 1,237,528,910.56
  5. Step 5: Solve for x
    x = 1,237,528,910.56/48,578.80
  6. Step 6: Final answer
    x = 25,474.67

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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.