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Finding the Fourth Proportional to 17,967.90, 26,950.59 and 6,721.10

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Solution

The fourth proportional to 17,967.90, 26,950.59 and 6,721.10 is: 10,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,967.90 : 26,950.59 = 6,721.10 : x
  2. Step 2: Convert to fraction form
    17,967.90/26,950.59 = 6,721.10/x
  3. Step 3: Cross multiply
    17,967.90x = 26,950.59 × 6,721.10
  4. Step 4: Simplify right side
    17,967.90x = 181,137,610.45
  5. Step 5: Solve for x
    x = 181,137,610.45/17,967.90
  6. Step 6: Final answer
    x = 10,081.18

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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.