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Finding the Fourth Proportional to 17,312.99, 25,948.97 and 7,945.11

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Solution

The fourth proportional to 17,312.99, 25,948.97 and 7,945.11 is: 11,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.99 : 25,948.97 = 7,945.11 : x
  2. Step 2: Convert to fraction form
    17,312.99/25,948.97 = 7,945.11/x
  3. Step 3: Cross multiply
    17,312.99x = 25,948.97 × 7,945.11
  4. Step 4: Simplify right side
    17,312.99x = 206,167,411.11
  5. Step 5: Solve for x
    x = 206,167,411.11/17,312.99
  6. Step 6: Final answer
    x = 11,908.25

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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.