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Finding the Fourth Proportional to 17,681.98, 26,491.74 and 9,343.54

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Solution

The fourth proportional to 17,681.98, 26,491.74 and 9,343.54 is: 13,998.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,681.98 : 26,491.74 = 9,343.54 : x
  2. Step 2: Convert to fraction form
    17,681.98/26,491.74 = 9,343.54/x
  3. Step 3: Cross multiply
    17,681.98x = 26,491.74 × 9,343.54
  4. Step 4: Simplify right side
    17,681.98x = 247,526,632.36
  5. Step 5: Solve for x
    x = 247,526,632.36/17,681.98
  6. Step 6: Final answer
    x = 13,998.81

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1.5x scale

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.