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Finding the Fourth Proportional to 40,727.16, 61,092 and 19,375.20

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Solution

The fourth proportional to 40,727.16, 61,092 and 19,375.20 is: 29,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,727.16 : 61,092 = 19,375.20 : x
  2. Step 2: Convert to fraction form
    40,727.16/61,092 = 19,375.20/x
  3. Step 3: Cross multiply
    40,727.16x = 61,092 × 19,375.20
  4. Step 4: Simplify right side
    40,727.16x = 1,183,669,718.40
  5. Step 5: Solve for x
    x = 1,183,669,718.40/40,727.16
  6. Step 6: Final answer
    x = 29,063.40

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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.