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Finding the Fourth Proportional to 17,995.56, 26,981.64 and 7,462.68

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Solution

The fourth proportional to 17,995.56, 26,981.64 and 7,462.68 is: 11,189.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,995.56 : 26,981.64 = 7,462.68 : x
  2. Step 2: Convert to fraction form
    17,995.56/26,981.64 = 7,462.68/x
  3. Step 3: Cross multiply
    17,995.56x = 26,981.64 × 7,462.68
  4. Step 4: Simplify right side
    17,995.56x = 201,355,345.20
  5. Step 5: Solve for x
    x = 201,355,345.20/17,995.56
  6. Step 6: Final answer
    x = 11,189.17

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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.