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Finding the Fourth Proportional to 14,958.61, 20,642.63 and 8,584.94

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Solution

The fourth proportional to 14,958.61, 20,642.63 and 8,584.94 is: 11,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,958.61 : 20,642.63 = 8,584.94 : x
  2. Step 2: Convert to fraction form
    14,958.61/20,642.63 = 8,584.94/x
  3. Step 3: Cross multiply
    14,958.61x = 20,642.63 × 8,584.94
  4. Step 4: Simplify right side
    14,958.61x = 177,215,739.99
  5. Step 5: Solve for x
    x = 177,215,739.99/14,958.61
  6. Step 6: Final answer
    x = 11,847.07

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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.