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Finding the Fourth Proportional to 8,412.50, 12,620.37 and 3,795.50

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Solution

The fourth proportional to 8,412.50, 12,620.37 and 3,795.50 is: 5,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.50 : 12,620.37 = 3,795.50 : x
  2. Step 2: Convert to fraction form
    8,412.50/12,620.37 = 3,795.50/x
  3. Step 3: Cross multiply
    8,412.50x = 12,620.37 × 3,795.50
  4. Step 4: Simplify right side
    8,412.50x = 47,900,614.34
  5. Step 5: Solve for x
    x = 47,900,614.34/8,412.50
  6. Step 6: Final answer
    x = 5,693.98

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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.