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Finding the Fourth Proportional to 54,642.93, 81,957.22 and 17,203.20

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Solution

The fourth proportional to 54,642.93, 81,957.22 and 17,203.20 is: 25,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,642.93 : 81,957.22 = 17,203.20 : x
  2. Step 2: Convert to fraction form
    54,642.93/81,957.22 = 17,203.20/x
  3. Step 3: Cross multiply
    54,642.93x = 81,957.22 × 17,203.20
  4. Step 4: Simplify right side
    54,642.93x = 1,409,926,436.35
  5. Step 5: Solve for x
    x = 1,409,926,436.35/54,642.93
  6. Step 6: Final answer
    x = 25,802.54

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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.