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Finding the Fourth Proportional to 11,393.52, 17,092.80 and 3,602.40

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Solution

The fourth proportional to 11,393.52, 17,092.80 and 3,602.40 is: 5,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.52 : 17,092.80 = 3,602.40 : x
  2. Step 2: Convert to fraction form
    11,393.52/17,092.80 = 3,602.40/x
  3. Step 3: Cross multiply
    11,393.52x = 17,092.80 × 3,602.40
  4. Step 4: Simplify right side
    11,393.52x = 61,575,102.72
  5. Step 5: Solve for x
    x = 61,575,102.72/11,393.52
  6. Step 6: Final answer
    x = 5,404.40

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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.