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Finding the Fourth Proportional to 10,755.68, 16,098.80 and 5,554.40

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Solution

The fourth proportional to 10,755.68, 16,098.80 and 5,554.40 is: 8,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,755.68 : 16,098.80 = 5,554.40 : x
  2. Step 2: Convert to fraction form
    10,755.68/16,098.80 = 5,554.40/x
  3. Step 3: Cross multiply
    10,755.68x = 16,098.80 × 5,554.40
  4. Step 4: Simplify right side
    10,755.68x = 89,419,174.72
  5. Step 5: Solve for x
    x = 89,419,174.72/10,755.68
  6. Step 6: Final answer
    x = 8,313.67

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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.