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Finding the Fourth Proportional to 53,197.58, 79,789.88 and 13,751.39

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Solution

The fourth proportional to 53,197.58, 79,789.88 and 13,751.39 is: 20,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,197.58 : 79,789.88 = 13,751.39 : x
  2. Step 2: Convert to fraction form
    53,197.58/79,789.88 = 13,751.39/x
  3. Step 3: Cross multiply
    53,197.58x = 79,789.88 × 13,751.39
  4. Step 4: Simplify right side
    53,197.58x = 1,097,221,290.23
  5. Step 5: Solve for x
    x = 1,097,221,290.23/53,197.58
  6. Step 6: Final answer
    x = 20,625.40

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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.