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Finding the Fourth Proportional to 10,879.70, 16,333.34 and 9,053.15

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Solution

The fourth proportional to 10,879.70, 16,333.34 and 9,053.15 is: 13,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.70 : 16,333.34 = 9,053.15 : x
  2. Step 2: Convert to fraction form
    10,879.70/16,333.34 = 9,053.15/x
  3. Step 3: Cross multiply
    10,879.70x = 16,333.34 × 9,053.15
  4. Step 4: Simplify right side
    10,879.70x = 147,868,050.09
  5. Step 5: Solve for x
    x = 147,868,050.09/10,879.70
  6. Step 6: Final answer
    x = 13,591.19

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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.