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Finding the Fourth Proportional to 38,796.80, 58,188.16 and 11,088

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Solution

The fourth proportional to 38,796.80, 58,188.16 and 11,088 is: 16,629.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,796.80 : 58,188.16 = 11,088 : x
  2. Step 2: Convert to fraction form
    38,796.80/58,188.16 = 11,088/x
  3. Step 3: Cross multiply
    38,796.80x = 58,188.16 × 11,088
  4. Step 4: Simplify right side
    38,796.80x = 645,190,318.08
  5. Step 5: Solve for x
    x = 645,190,318.08/38,796.80
  6. Step 6: Final answer
    x = 16,629.99

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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.