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Finding the Fourth Proportional to 11,153.92, 16,709.12 and 8,952.96

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Solution

The fourth proportional to 11,153.92, 16,709.12 and 8,952.96 is: 13,411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.92 : 16,709.12 = 8,952.96 : x
  2. Step 2: Convert to fraction form
    11,153.92/16,709.12 = 8,952.96/x
  3. Step 3: Cross multiply
    11,153.92x = 16,709.12 × 8,952.96
  4. Step 4: Simplify right side
    11,153.92x = 149,596,083.00
  5. Step 5: Solve for x
    x = 149,596,083.00/11,153.92
  6. Step 6: Final answer
    x = 13,411.97

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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.