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Finding the Fourth Proportional to 11,927.88, 17,892 and 4,136.88

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Solution

The fourth proportional to 11,927.88, 17,892 and 4,136.88 is: 6,205.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,927.88 : 17,892 = 4,136.88 : x
  2. Step 2: Convert to fraction form
    11,927.88/17,892 = 4,136.88/x
  3. Step 3: Cross multiply
    11,927.88x = 17,892 × 4,136.88
  4. Step 4: Simplify right side
    11,927.88x = 74,017,056.96
  5. Step 5: Solve for x
    x = 74,017,056.96/11,927.88
  6. Step 6: Final answer
    x = 6,205.38

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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.