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Finding the Fourth Proportional to 14,483.52, 21,688.52 and 12,137.36

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Solution

The fourth proportional to 14,483.52, 21,688.52 and 12,137.36 is: 18,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,483.52 : 21,688.52 = 12,137.36 : x
  2. Step 2: Convert to fraction form
    14,483.52/21,688.52 = 12,137.36/x
  3. Step 3: Cross multiply
    14,483.52x = 21,688.52 × 12,137.36
  4. Step 4: Simplify right side
    14,483.52x = 263,241,205.98
  5. Step 5: Solve for x
    x = 263,241,205.98/14,483.52
  6. Step 6: Final answer
    x = 18,175.22

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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.