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Finding the Fourth Proportional to 49,492, 74,236.56 and 18,326.56

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Solution

The fourth proportional to 49,492, 74,236.56 and 18,326.56 is: 27,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,492 : 74,236.56 = 18,326.56 : x
  2. Step 2: Convert to fraction form
    49,492/74,236.56 = 18,326.56/x
  3. Step 3: Cross multiply
    49,492x = 74,236.56 × 18,326.56
  4. Step 4: Simplify right side
    49,492x = 1,360,500,771.03
  5. Step 5: Solve for x
    x = 1,360,500,771.03/49,492
  6. Step 6: Final answer
    x = 27,489.31

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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.