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Finding the Fourth Proportional to 11,188.65, 16,782.99 and 5,327.49

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Solution

The fourth proportional to 11,188.65, 16,782.99 and 5,327.49 is: 7,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.65 : 16,782.99 = 5,327.49 : x
  2. Step 2: Convert to fraction form
    11,188.65/16,782.99 = 5,327.49/x
  3. Step 3: Cross multiply
    11,188.65x = 16,782.99 × 5,327.49
  4. Step 4: Simplify right side
    11,188.65x = 89,411,211.40
  5. Step 5: Solve for x
    x = 89,411,211.40/11,188.65
  6. Step 6: Final answer
    x = 7,991.24

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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.