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Finding the Fourth Proportional to 43,597.31, 65,395.88 and 12,007.56

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Solution

The fourth proportional to 43,597.31, 65,395.88 and 12,007.56 is: 18,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,597.31 : 65,395.88 = 12,007.56 : x
  2. Step 2: Convert to fraction form
    43,597.31/65,395.88 = 12,007.56/x
  3. Step 3: Cross multiply
    43,597.31x = 65,395.88 × 12,007.56
  4. Step 4: Simplify right side
    43,597.31x = 785,244,952.85
  5. Step 5: Solve for x
    x = 785,244,952.85/43,597.31
  6. Step 6: Final answer
    x = 18,011.32

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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.