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Finding the Fourth Proportional to 11,889.96, 16,416.16 and 10,626.96

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Solution

The fourth proportional to 11,889.96, 16,416.16 and 10,626.96 is: 14,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.96 : 16,416.16 = 10,626.96 : x
  2. Step 2: Convert to fraction form
    11,889.96/16,416.16 = 10,626.96/x
  3. Step 3: Cross multiply
    11,889.96x = 16,416.16 × 10,626.96
  4. Step 4: Simplify right side
    11,889.96x = 174,453,875.67
  5. Step 5: Solve for x
    x = 174,453,875.67/11,889.96
  6. Step 6: Final answer
    x = 14,672.37

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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.