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Finding the Fourth Proportional to 48,283, 72,379.14 and 43,954.36

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Solution

The fourth proportional to 48,283, 72,379.14 and 43,954.36 is: 65,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,283 : 72,379.14 = 43,954.36 : x
  2. Step 2: Convert to fraction form
    48,283/72,379.14 = 43,954.36/x
  3. Step 3: Cross multiply
    48,283x = 72,379.14 × 43,954.36
  4. Step 4: Simplify right side
    48,283x = 3,181,378,776.05
  5. Step 5: Solve for x
    x = 3,181,378,776.05/48,283
  6. Step 6: Final answer
    x = 65,890.25

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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.