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Finding the Fourth Proportional to 12,543.84, 17,310.96 and 6,954.84

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Solution

The fourth proportional to 12,543.84, 17,310.96 and 6,954.84 is: 9,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.84 : 17,310.96 = 6,954.84 : x
  2. Step 2: Convert to fraction form
    12,543.84/17,310.96 = 6,954.84/x
  3. Step 3: Cross multiply
    12,543.84x = 17,310.96 × 6,954.84
  4. Step 4: Simplify right side
    12,543.84x = 120,394,957.05
  5. Step 5: Solve for x
    x = 120,394,957.05/12,543.84
  6. Step 6: Final answer
    x = 9,597.93

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1.5x scale

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.