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Finding the Fourth Proportional to 36,485.76, 50,350.34 and 19,718.76

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Solution

The fourth proportional to 36,485.76, 50,350.34 and 19,718.76 is: 27,211.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,485.76 : 50,350.34 = 19,718.76 : x
  2. Step 2: Convert to fraction form
    36,485.76/50,350.34 = 19,718.76/x
  3. Step 3: Cross multiply
    36,485.76x = 50,350.34 × 19,718.76
  4. Step 4: Simplify right side
    36,485.76x = 992,846,270.38
  5. Step 5: Solve for x
    x = 992,846,270.38/36,485.76
  6. Step 6: Final answer
    x = 27,211.88

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Double scale
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1.5x scale

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.