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Finding the Fourth Proportional to 17,482.11, 26,200.89 and 7,618.74

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Solution

The fourth proportional to 17,482.11, 26,200.89 and 7,618.74 is: 11,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,482.11 : 26,200.89 = 7,618.74 : x
  2. Step 2: Convert to fraction form
    17,482.11/26,200.89 = 7,618.74/x
  3. Step 3: Cross multiply
    17,482.11x = 26,200.89 × 7,618.74
  4. Step 4: Simplify right side
    17,482.11x = 199,617,768.68
  5. Step 5: Solve for x
    x = 199,617,768.68/17,482.11
  6. Step 6: Final answer
    x = 11,418.40

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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.