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Finding the Fourth Proportional to 36,648, 50,573.76 and 19,881.60

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Solution

The fourth proportional to 36,648, 50,573.76 and 19,881.60 is: 27,436.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,648 : 50,573.76 = 19,881.60 : x
  2. Step 2: Convert to fraction form
    36,648/50,573.76 = 19,881.60/x
  3. Step 3: Cross multiply
    36,648x = 50,573.76 × 19,881.60
  4. Step 4: Simplify right side
    36,648x = 1,005,487,266.82
  5. Step 5: Solve for x
    x = 1,005,487,266.82/36,648
  6. Step 6: Final answer
    x = 27,436.35

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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.