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Finding the Fourth Proportional to 14,378.05, 21,567.98 and 4,517.72

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Solution

The fourth proportional to 14,378.05, 21,567.98 and 4,517.72 is: 6,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.05 : 21,567.98 = 4,517.72 : x
  2. Step 2: Convert to fraction form
    14,378.05/21,567.98 = 4,517.72/x
  3. Step 3: Cross multiply
    14,378.05x = 21,567.98 × 4,517.72
  4. Step 4: Simplify right side
    14,378.05x = 97,437,964.18
  5. Step 5: Solve for x
    x = 97,437,964.18/14,378.05
  6. Step 6: Final answer
    x = 6,776.86

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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.