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Finding the Fourth Proportional to 13,305.96, 19,959 and 6,723.12

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Solution

The fourth proportional to 13,305.96, 19,959 and 6,723.12 is: 10,084.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.96 : 19,959 = 6,723.12 : x
  2. Step 2: Convert to fraction form
    13,305.96/19,959 = 6,723.12/x
  3. Step 3: Cross multiply
    13,305.96x = 19,959 × 6,723.12
  4. Step 4: Simplify right side
    13,305.96x = 134,186,752.08
  5. Step 5: Solve for x
    x = 134,186,752.08/13,305.96
  6. Step 6: Final answer
    x = 10,084.71

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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.