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Finding the Fourth Proportional to 43,671.27, 65,452.11 and 18,681.95

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Solution

The fourth proportional to 43,671.27, 65,452.11 and 18,681.95 is: 27,999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,671.27 : 65,452.11 = 18,681.95 : x
  2. Step 2: Convert to fraction form
    43,671.27/65,452.11 = 18,681.95/x
  3. Step 3: Cross multiply
    43,671.27x = 65,452.11 × 18,681.95
  4. Step 4: Simplify right side
    43,671.27x = 1,222,772,719.15
  5. Step 5: Solve for x
    x = 1,222,772,719.15/43,671.27
  6. Step 6: Final answer
    x = 27,999.48

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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.