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Finding the Fourth Proportional to 43,918.66, 65,888.49 and 14,336.56

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Solution

The fourth proportional to 43,918.66, 65,888.49 and 14,336.56 is: 21,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,918.66 : 65,888.49 = 14,336.56 : x
  2. Step 2: Convert to fraction form
    43,918.66/65,888.49 = 14,336.56/x
  3. Step 3: Cross multiply
    43,918.66x = 65,888.49 × 14,336.56
  4. Step 4: Simplify right side
    43,918.66x = 944,614,290.19
  5. Step 5: Solve for x
    x = 944,614,290.19/43,918.66
  6. Step 6: Final answer
    x = 21,508.27

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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.