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Finding the Fourth Proportional to 14,010.12, 20,994.48 and 7,762.56

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Solution

The fourth proportional to 14,010.12, 20,994.48 and 7,762.56 is: 11,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,010.12 : 20,994.48 = 7,762.56 : x
  2. Step 2: Convert to fraction form
    14,010.12/20,994.48 = 7,762.56/x
  3. Step 3: Cross multiply
    14,010.12x = 20,994.48 × 7,762.56
  4. Step 4: Simplify right side
    14,010.12x = 162,970,910.67
  5. Step 5: Solve for x
    x = 162,970,910.67/14,010.12
  6. Step 6: Final answer
    x = 11,632.37

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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.