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Finding the Fourth Proportional to 11,607.74, 17,446.68 and 7,672.49

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Solution

The fourth proportional to 11,607.74, 17,446.68 and 7,672.49 is: 11,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,607.74 : 17,446.68 = 7,672.49 : x
  2. Step 2: Convert to fraction form
    11,607.74/17,446.68 = 7,672.49/x
  3. Step 3: Cross multiply
    11,607.74x = 17,446.68 × 7,672.49
  4. Step 4: Simplify right side
    11,607.74x = 133,859,390.60
  5. Step 5: Solve for x
    x = 133,859,390.60/11,607.74
  6. Step 6: Final answer
    x = 11,531.91

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1.5x scale

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.