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Finding the Fourth Proportional to 43,899.64, 65,855.80 and 14,310.16

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Solution

The fourth proportional to 43,899.64, 65,855.80 and 14,310.16 is: 21,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,899.64 : 65,855.80 = 14,310.16 : x
  2. Step 2: Convert to fraction form
    43,899.64/65,855.80 = 14,310.16/x
  3. Step 3: Cross multiply
    43,899.64x = 65,855.80 × 14,310.16
  4. Step 4: Simplify right side
    43,899.64x = 942,407,034.93
  5. Step 5: Solve for x
    x = 942,407,034.93/43,899.64
  6. Step 6: Final answer
    x = 21,467.31

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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.