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Finding the Fourth Proportional to 17,366.25, 26,050.59 and 6,978

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Solution

The fourth proportional to 17,366.25, 26,050.59 and 6,978 is: 10,467.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,366.25 : 26,050.59 = 6,978 : x
  2. Step 2: Convert to fraction form
    17,366.25/26,050.59 = 6,978/x
  3. Step 3: Cross multiply
    17,366.25x = 26,050.59 × 6,978
  4. Step 4: Simplify right side
    17,366.25x = 181,781,017.02
  5. Step 5: Solve for x
    x = 181,781,017.02/17,366.25
  6. Step 6: Final answer
    x = 10,467.49

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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.