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Finding the Fourth Proportional to 18,873.60, 28,310.08 and 4,833.50

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Solution

The fourth proportional to 18,873.60, 28,310.08 and 4,833.50 is: 7,250.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.60 : 28,310.08 = 4,833.50 : x
  2. Step 2: Convert to fraction form
    18,873.60/28,310.08 = 4,833.50/x
  3. Step 3: Cross multiply
    18,873.60x = 28,310.08 × 4,833.50
  4. Step 4: Simplify right side
    18,873.60x = 136,836,771.68
  5. Step 5: Solve for x
    x = 136,836,771.68/18,873.60
  6. Step 6: Final answer
    x = 7,250.17

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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.