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Finding the Fourth Proportional to 14,576.95, 21,867.20 and 5,217.95

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Solution

The fourth proportional to 14,576.95, 21,867.20 and 5,217.95 is: 7,827.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,576.95 : 21,867.20 = 5,217.95 : x
  2. Step 2: Convert to fraction form
    14,576.95/21,867.20 = 5,217.95/x
  3. Step 3: Cross multiply
    14,576.95x = 21,867.20 × 5,217.95
  4. Step 4: Simplify right side
    14,576.95x = 114,102,023.95
  5. Step 5: Solve for x
    x = 114,102,023.95/14,576.95
  6. Step 6: Final answer
    x = 7,827.57

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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.