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Finding the Fourth Proportional to 8,659.81, 11,950.56 and 4,680.94

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Solution

The fourth proportional to 8,659.81, 11,950.56 and 4,680.94 is: 6,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.81 : 11,950.56 = 4,680.94 : x
  2. Step 2: Convert to fraction form
    8,659.81/11,950.56 = 4,680.94/x
  3. Step 3: Cross multiply
    8,659.81x = 11,950.56 × 4,680.94
  4. Step 4: Simplify right side
    8,659.81x = 55,939,854.33
  5. Step 5: Solve for x
    x = 55,939,854.33/8,659.81
  6. Step 6: Final answer
    x = 6,459.71

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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.