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Finding the Fourth Proportional to 14,645.00, 20,210.09 and 7,930.62

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Solution

The fourth proportional to 14,645.00, 20,210.09 and 7,930.62 is: 10,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.00 : 20,210.09 = 7,930.62 : x
  2. Step 2: Convert to fraction form
    14,645.00/20,210.09 = 7,930.62/x
  3. Step 3: Cross multiply
    14,645.00x = 20,210.09 × 7,930.62
  4. Step 4: Simplify right side
    14,645.00x = 160,278,504.30
  5. Step 5: Solve for x
    x = 160,278,504.30/14,645.00
  6. Step 6: Final answer
    x = 10,944.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.