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Finding the Fourth Proportional to 10,958.70, 16,442.10 and 10,553.70

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Solution

The fourth proportional to 10,958.70, 16,442.10 and 10,553.70 is: 15,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.70 : 16,442.10 = 10,553.70 : x
  2. Step 2: Convert to fraction form
    10,958.70/16,442.10 = 10,553.70/x
  3. Step 3: Cross multiply
    10,958.70x = 16,442.10 × 10,553.70
  4. Step 4: Simplify right side
    10,958.70x = 173,524,990.77
  5. Step 5: Solve for x
    x = 173,524,990.77/10,958.70
  6. Step 6: Final answer
    x = 15,834.45

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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.