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Finding the Fourth Proportional to 17,958.80, 26,943.48 and 9,199.64

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Solution

The fourth proportional to 17,958.80, 26,943.48 and 9,199.64 is: 13,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,958.80 : 26,943.48 = 9,199.64 : x
  2. Step 2: Convert to fraction form
    17,958.80/26,943.48 = 9,199.64/x
  3. Step 3: Cross multiply
    17,958.80x = 26,943.48 × 9,199.64
  4. Step 4: Simplify right side
    17,958.80x = 247,870,316.35
  5. Step 5: Solve for x
    x = 247,870,316.35/17,958.80
  6. Step 6: Final answer
    x = 13,802.16

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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.