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Finding the Fourth Proportional to 17,376.99, 23,979.92 and 9,419.07

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Solution

The fourth proportional to 17,376.99, 23,979.92 and 9,419.07 is: 12,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.99 : 23,979.92 = 9,419.07 : x
  2. Step 2: Convert to fraction form
    17,376.99/23,979.92 = 9,419.07/x
  3. Step 3: Cross multiply
    17,376.99x = 23,979.92 × 9,419.07
  4. Step 4: Simplify right side
    17,376.99x = 225,868,497.98
  5. Step 5: Solve for x
    x = 225,868,497.98/17,376.99
  6. Step 6: Final answer
    x = 12,998.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.