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Finding the Fourth Proportional to 43,554.88, 65,326.16 and 13,968.87

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Solution

The fourth proportional to 43,554.88, 65,326.16 and 13,968.87 is: 20,951.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,554.88 : 65,326.16 = 13,968.87 : x
  2. Step 2: Convert to fraction form
    43,554.88/65,326.16 = 13,968.87/x
  3. Step 3: Cross multiply
    43,554.88x = 65,326.16 × 13,968.87
  4. Step 4: Simplify right side
    43,554.88x = 912,532,636.64
  5. Step 5: Solve for x
    x = 912,532,636.64/43,554.88
  6. Step 6: Final answer
    x = 20,951.33

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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.