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Finding the Fourth Proportional to 12,232, 16,880.16 and 6,643

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Solution

The fourth proportional to 12,232, 16,880.16 and 6,643 is: 9,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232 : 16,880.16 = 6,643 : x
  2. Step 2: Convert to fraction form
    12,232/16,880.16 = 6,643/x
  3. Step 3: Cross multiply
    12,232x = 16,880.16 × 6,643
  4. Step 4: Simplify right side
    12,232x = 112,134,902.88
  5. Step 5: Solve for x
    x = 112,134,902.88/12,232
  6. Step 6: Final answer
    x = 9,167.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.