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Finding the Fourth Proportional to 15,174.51, 22,771.49 and 7,379.07

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Solution

The fourth proportional to 15,174.51, 22,771.49 and 7,379.07 is: 11,073.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.51 : 22,771.49 = 7,379.07 : x
  2. Step 2: Convert to fraction form
    15,174.51/22,771.49 = 7,379.07/x
  3. Step 3: Cross multiply
    15,174.51x = 22,771.49 × 7,379.07
  4. Step 4: Simplify right side
    15,174.51x = 168,032,381.82
  5. Step 5: Solve for x
    x = 168,032,381.82/15,174.51
  6. Step 6: Final answer
    x = 11,073.33

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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.