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Finding the Fourth Proportional to 17,802.67, 26,680.63 and 13,100.66

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Solution

The fourth proportional to 17,802.67, 26,680.63 and 13,100.66 is: 19,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,802.67 : 26,680.63 = 13,100.66 : x
  2. Step 2: Convert to fraction form
    17,802.67/26,680.63 = 13,100.66/x
  3. Step 3: Cross multiply
    17,802.67x = 26,680.63 × 13,100.66
  4. Step 4: Simplify right side
    17,802.67x = 349,533,862.22
  5. Step 5: Solve for x
    x = 349,533,862.22/17,802.67
  6. Step 6: Final answer
    x = 19,633.79

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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.