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Finding the Fourth Proportional to 13,335.66, 20,004.66 and 6,757.62

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Solution

The fourth proportional to 13,335.66, 20,004.66 and 6,757.62 is: 10,137.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.66 : 20,004.66 = 6,757.62 : x
  2. Step 2: Convert to fraction form
    13,335.66/20,004.66 = 6,757.62/x
  3. Step 3: Cross multiply
    13,335.66x = 20,004.66 × 6,757.62
  4. Step 4: Simplify right side
    13,335.66x = 135,183,890.51
  5. Step 5: Solve for x
    x = 135,183,890.51/13,335.66
  6. Step 6: Final answer
    x = 10,137.02

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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.