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Finding the Fourth Proportional to 12,196.92, 18,306.90 and 7,588.92

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Solution

The fourth proportional to 12,196.92, 18,306.90 and 7,588.92 is: 11,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.92 : 18,306.90 = 7,588.92 : x
  2. Step 2: Convert to fraction form
    12,196.92/18,306.90 = 7,588.92/x
  3. Step 3: Cross multiply
    12,196.92x = 18,306.90 × 7,588.92
  4. Step 4: Simplify right side
    12,196.92x = 138,929,599.55
  5. Step 5: Solve for x
    x = 138,929,599.55/12,196.92
  6. Step 6: Final answer
    x = 11,390.55

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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.