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Finding the Fourth Proportional to 49,463, 74,203.80 and 19,883.18

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Solution

The fourth proportional to 49,463, 74,203.80 and 19,883.18 is: 29,828.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,463 : 74,203.80 = 19,883.18 : x
  2. Step 2: Convert to fraction form
    49,463/74,203.80 = 19,883.18/x
  3. Step 3: Cross multiply
    49,463x = 74,203.80 × 19,883.18
  4. Step 4: Simplify right side
    49,463x = 1,475,407,512.08
  5. Step 5: Solve for x
    x = 1,475,407,512.08/49,463
  6. Step 6: Final answer
    x = 29,828.51

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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.