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Finding the Fourth Proportional to 11,809.85, 17,693.96 and 10,522.76

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Solution

The fourth proportional to 11,809.85, 17,693.96 and 10,522.76 is: 15,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.85 : 17,693.96 = 10,522.76 : x
  2. Step 2: Convert to fraction form
    11,809.85/17,693.96 = 10,522.76/x
  3. Step 3: Cross multiply
    11,809.85x = 17,693.96 × 10,522.76
  4. Step 4: Simplify right side
    11,809.85x = 186,189,153.45
  5. Step 5: Solve for x
    x = 186,189,153.45/11,809.85
  6. Step 6: Final answer
    x = 15,765.59

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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.