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Finding the Fourth Proportional to 43,447.65, 65,174.45 and 13,867.73

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Solution

The fourth proportional to 43,447.65, 65,174.45 and 13,867.73 is: 20,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,447.65 : 65,174.45 = 13,867.73 : x
  2. Step 2: Convert to fraction form
    43,447.65/65,174.45 = 13,867.73/x
  3. Step 3: Cross multiply
    43,447.65x = 65,174.45 × 13,867.73
  4. Step 4: Simplify right side
    43,447.65x = 903,821,280.29
  5. Step 5: Solve for x
    x = 903,821,280.29/43,447.65
  6. Step 6: Final answer
    x = 20,802.54

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1.5x scale

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.