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Finding the Fourth Proportional to 19,365.12, 29,052.48 and 5,514

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Solution

The fourth proportional to 19,365.12, 29,052.48 and 5,514 is: 8,272.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.12 : 29,052.48 = 5,514 : x
  2. Step 2: Convert to fraction form
    19,365.12/29,052.48 = 5,514/x
  3. Step 3: Cross multiply
    19,365.12x = 29,052.48 × 5,514
  4. Step 4: Simplify right side
    19,365.12x = 160,195,374.72
  5. Step 5: Solve for x
    x = 160,195,374.72/19,365.12
  6. Step 6: Final answer
    x = 8,272.37

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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.