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Finding the Fourth Proportional to 14,009.99, 20,994.93 and 6,610.64

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Solution

The fourth proportional to 14,009.99, 20,994.93 and 6,610.64 is: 9,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.99 : 20,994.93 = 6,610.64 : x
  2. Step 2: Convert to fraction form
    14,009.99/20,994.93 = 6,610.64/x
  3. Step 3: Cross multiply
    14,009.99x = 20,994.93 × 6,610.64
  4. Step 4: Simplify right side
    14,009.99x = 138,789,819.08
  5. Step 5: Solve for x
    x = 138,789,819.08/14,009.99
  6. Step 6: Final answer
    x = 9,906.49

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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.