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Finding the Fourth Proportional to 48,626.56, 72,972.65 and 19,040.70

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Solution

The fourth proportional to 48,626.56, 72,972.65 and 19,040.70 is: 28,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,626.56 : 72,972.65 = 19,040.70 : x
  2. Step 2: Convert to fraction form
    48,626.56/72,972.65 = 19,040.70/x
  3. Step 3: Cross multiply
    48,626.56x = 72,972.65 × 19,040.70
  4. Step 4: Simplify right side
    48,626.56x = 1,389,450,658.10
  5. Step 5: Solve for x
    x = 1,389,450,658.10/48,626.56
  6. Step 6: Final answer
    x = 28,573.90

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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.