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Finding the Fourth Proportional to 12,368.48, 18,555.30 and 4,047.84

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Solution

The fourth proportional to 12,368.48, 18,555.30 and 4,047.84 is: 6,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.48 : 18,555.30 = 4,047.84 : x
  2. Step 2: Convert to fraction form
    12,368.48/18,555.30 = 4,047.84/x
  3. Step 3: Cross multiply
    12,368.48x = 18,555.30 × 4,047.84
  4. Step 4: Simplify right side
    12,368.48x = 75,108,885.55
  5. Step 5: Solve for x
    x = 75,108,885.55/12,368.48
  6. Step 6: Final answer
    x = 6,072.61

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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.