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Finding the Fourth Proportional to 17,090.80, 25,639.80 and 6,702.52

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Solution

The fourth proportional to 17,090.80, 25,639.80 and 6,702.52 is: 10,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,090.80 : 25,639.80 = 6,702.52 : x
  2. Step 2: Convert to fraction form
    17,090.80/25,639.80 = 6,702.52/x
  3. Step 3: Cross multiply
    17,090.80x = 25,639.80 × 6,702.52
  4. Step 4: Simplify right side
    17,090.80x = 171,851,272.30
  5. Step 5: Solve for x
    x = 171,851,272.30/17,090.80
  6. Step 6: Final answer
    x = 10,055.19

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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.