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Finding the Fourth Proportional to 17,718.67, 26,578.04 and 16,636.11

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Solution

The fourth proportional to 17,718.67, 26,578.04 and 16,636.11 is: 24,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,718.67 : 26,578.04 = 16,636.11 : x
  2. Step 2: Convert to fraction form
    17,718.67/26,578.04 = 16,636.11/x
  3. Step 3: Cross multiply
    17,718.67x = 26,578.04 × 16,636.11
  4. Step 4: Simplify right side
    17,718.67x = 442,155,064.13
  5. Step 5: Solve for x
    x = 442,155,064.13/17,718.67
  6. Step 6: Final answer
    x = 24,954.19

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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.