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Finding the Fourth Proportional to 43,874.53, 65,811.75 and 14,292.32

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Solution

The fourth proportional to 43,874.53, 65,811.75 and 14,292.32 is: 21,438.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,874.53 : 65,811.75 = 14,292.32 : x
  2. Step 2: Convert to fraction form
    43,874.53/65,811.75 = 14,292.32/x
  3. Step 3: Cross multiply
    43,874.53x = 65,811.75 × 14,292.32
  4. Step 4: Simplify right side
    43,874.53x = 940,602,519.30
  5. Step 5: Solve for x
    x = 940,602,519.30/43,874.53
  6. Step 6: Final answer
    x = 21,438.46

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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.