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Finding the Fourth Proportional to 43,806.15, 65,714.70 and 17,148.70

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Solution

The fourth proportional to 43,806.15, 65,714.70 and 17,148.70 is: 25,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,806.15 : 65,714.70 = 17,148.70 : x
  2. Step 2: Convert to fraction form
    43,806.15/65,714.70 = 17,148.70/x
  3. Step 3: Cross multiply
    43,806.15x = 65,714.70 × 17,148.70
  4. Step 4: Simplify right side
    43,806.15x = 1,126,921,758.03
  5. Step 5: Solve for x
    x = 1,126,921,758.03/43,806.15
  6. Step 6: Final answer
    x = 25,725.19

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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.