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Finding the Fourth Proportional to 14,913, 22,369.50 and 3,969

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Solution

The fourth proportional to 14,913, 22,369.50 and 3,969 is: 5,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913 : 22,369.50 = 3,969 : x
  2. Step 2: Convert to fraction form
    14,913/22,369.50 = 3,969/x
  3. Step 3: Cross multiply
    14,913x = 22,369.50 × 3,969
  4. Step 4: Simplify right side
    14,913x = 88,784,545.50
  5. Step 5: Solve for x
    x = 88,784,545.50/14,913
  6. Step 6: Final answer
    x = 5,953.50

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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.