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Finding the Fourth Proportional to 36,852.50, 55,287.39 and 12,228.50

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Solution

The fourth proportional to 36,852.50, 55,287.39 and 12,228.50 is: 18,345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,852.50 : 55,287.39 = 12,228.50 : x
  2. Step 2: Convert to fraction form
    36,852.50/55,287.39 = 12,228.50/x
  3. Step 3: Cross multiply
    36,852.50x = 55,287.39 × 12,228.50
  4. Step 4: Simplify right side
    36,852.50x = 676,081,848.62
  5. Step 5: Solve for x
    x = 676,081,848.62/36,852.50
  6. Step 6: Final answer
    x = 18,345.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.