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Finding the Fourth Proportional to 43,576.80, 65,339.28 and 18,604.08

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Solution

The fourth proportional to 43,576.80, 65,339.28 and 18,604.08 is: 27,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,576.80 : 65,339.28 = 18,604.08 : x
  2. Step 2: Convert to fraction form
    43,576.80/65,339.28 = 18,604.08/x
  3. Step 3: Cross multiply
    43,576.80x = 65,339.28 × 18,604.08
  4. Step 4: Simplify right side
    43,576.80x = 1,215,577,192.26
  5. Step 5: Solve for x
    x = 1,215,577,192.26/43,576.80
  6. Step 6: Final answer
    x = 27,895.05

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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.