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Finding the Fourth Proportional to 19,365.15, 29,020.04 and 11,027.96

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Solution

The fourth proportional to 19,365.15, 29,020.04 and 11,027.96 is: 16,526.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.15 : 29,020.04 = 11,027.96 : x
  2. Step 2: Convert to fraction form
    19,365.15/29,020.04 = 11,027.96/x
  3. Step 3: Cross multiply
    19,365.15x = 29,020.04 × 11,027.96
  4. Step 4: Simplify right side
    19,365.15x = 320,031,640.08
  5. Step 5: Solve for x
    x = 320,031,640.08/19,365.15
  6. Step 6: Final answer
    x = 16,526.16

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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.