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Finding the Fourth Proportional to 53,336.52, 80,009.34 and 13,893.64

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Solution

The fourth proportional to 53,336.52, 80,009.34 and 13,893.64 is: 20,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,336.52 : 80,009.34 = 13,893.64 : x
  2. Step 2: Convert to fraction form
    53,336.52/80,009.34 = 13,893.64/x
  3. Step 3: Cross multiply
    53,336.52x = 80,009.34 × 13,893.64
  4. Step 4: Simplify right side
    53,336.52x = 1,111,620,966.60
  5. Step 5: Solve for x
    x = 1,111,620,966.60/53,336.52
  6. Step 6: Final answer
    x = 20,841.65

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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.