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Finding the Fourth Proportional to 43,967.51, 65,955.15 and 12,377.85

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Solution

The fourth proportional to 43,967.51, 65,955.15 and 12,377.85 is: 18,567.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,967.51 : 65,955.15 = 12,377.85 : x
  2. Step 2: Convert to fraction form
    43,967.51/65,955.15 = 12,377.85/x
  3. Step 3: Cross multiply
    43,967.51x = 65,955.15 × 12,377.85
  4. Step 4: Simplify right side
    43,967.51x = 816,382,953.43
  5. Step 5: Solve for x
    x = 816,382,953.43/43,967.51
  6. Step 6: Final answer
    x = 18,567.87

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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.