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Finding the Fourth Proportional to 65,356.88, 98,036.53 and 18,610.97

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Solution

The fourth proportional to 65,356.88, 98,036.53 and 18,610.97 is: 27,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,356.88 : 98,036.53 = 18,610.97 : x
  2. Step 2: Convert to fraction form
    65,356.88/98,036.53 = 18,610.97/x
  3. Step 3: Cross multiply
    65,356.88x = 98,036.53 × 18,610.97
  4. Step 4: Simplify right side
    65,356.88x = 1,824,554,382.02
  5. Step 5: Solve for x
    x = 1,824,554,382.02/65,356.88
  6. Step 6: Final answer
    x = 27,916.79

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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.