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Finding the Fourth Proportional to 17,016.53, 25,530 and 8,702.39

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Solution

The fourth proportional to 17,016.53, 25,530 and 8,702.39 is: 13,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,016.53 : 25,530 = 8,702.39 : x
  2. Step 2: Convert to fraction form
    17,016.53/25,530 = 8,702.39/x
  3. Step 3: Cross multiply
    17,016.53x = 25,530 × 8,702.39
  4. Step 4: Simplify right side
    17,016.53x = 222,172,080.53
  5. Step 5: Solve for x
    x = 222,172,080.53/17,016.53
  6. Step 6: Final answer
    x = 13,056.25

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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.