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Finding the Fourth Proportional to 51,601.54, 77,436.83 and 18,769.54

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Solution

The fourth proportional to 51,601.54, 77,436.83 and 18,769.54 is: 28,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,601.54 : 77,436.83 = 18,769.54 : x
  2. Step 2: Convert to fraction form
    51,601.54/77,436.83 = 18,769.54/x
  3. Step 3: Cross multiply
    51,601.54x = 77,436.83 × 18,769.54
  4. Step 4: Simplify right side
    51,601.54x = 1,453,453,678.16
  5. Step 5: Solve for x
    x = 1,453,453,678.16/51,601.54
  6. Step 6: Final answer
    x = 28,166.87

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1.5x scale

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.