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Finding the Fourth Proportional to 54,643.70, 81,951.15 and 17,203.70

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Solution

The fourth proportional to 54,643.70, 81,951.15 and 17,203.70 is: 25,801.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,643.70 : 81,951.15 = 17,203.70 : x
  2. Step 2: Convert to fraction form
    54,643.70/81,951.15 = 17,203.70/x
  3. Step 3: Cross multiply
    54,643.70x = 81,951.15 × 17,203.70
  4. Step 4: Simplify right side
    54,643.70x = 1,409,862,999.26
  5. Step 5: Solve for x
    x = 1,409,862,999.26/54,643.70
  6. Step 6: Final answer
    x = 25,801.02

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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.