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Finding the Fourth Proportional to 14,883.94, 20,539.92 and 8,169.64

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Solution

The fourth proportional to 14,883.94, 20,539.92 and 8,169.64 is: 11,274.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,883.94 : 20,539.92 = 8,169.64 : x
  2. Step 2: Convert to fraction form
    14,883.94/20,539.92 = 8,169.64/x
  3. Step 3: Cross multiply
    14,883.94x = 20,539.92 × 8,169.64
  4. Step 4: Simplify right side
    14,883.94x = 167,803,752.03
  5. Step 5: Solve for x
    x = 167,803,752.03/14,883.94
  6. Step 6: Final answer
    x = 11,274.15

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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.