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Finding the Fourth Proportional to 28,964.55, 43,447.58 and 9,243.08

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Solution

The fourth proportional to 28,964.55, 43,447.58 and 9,243.08 is: 13,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.55 : 43,447.58 = 9,243.08 : x
  2. Step 2: Convert to fraction form
    28,964.55/43,447.58 = 9,243.08/x
  3. Step 3: Cross multiply
    28,964.55x = 43,447.58 × 9,243.08
  4. Step 4: Simplify right side
    28,964.55x = 401,589,457.75
  5. Step 5: Solve for x
    x = 401,589,457.75/28,964.55
  6. Step 6: Final answer
    x = 13,864.86

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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.