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Finding the Fourth Proportional to 43,456.70, 65,206.65 and 17,162.30

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Solution

The fourth proportional to 43,456.70, 65,206.65 and 17,162.30 is: 25,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,456.70 : 65,206.65 = 17,162.30 : x
  2. Step 2: Convert to fraction form
    43,456.70/65,206.65 = 17,162.30/x
  3. Step 3: Cross multiply
    43,456.70x = 65,206.65 × 17,162.30
  4. Step 4: Simplify right side
    43,456.70x = 1,119,096,089.30
  5. Step 5: Solve for x
    x = 1,119,096,089.30/43,456.70
  6. Step 6: Final answer
    x = 25,751.98

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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.