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Finding the Fourth Proportional to 14,322.76, 21,484.09 and 8,079.94

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Solution

The fourth proportional to 14,322.76, 21,484.09 and 8,079.94 is: 12,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,322.76 : 21,484.09 = 8,079.94 : x
  2. Step 2: Convert to fraction form
    14,322.76/21,484.09 = 8,079.94/x
  3. Step 3: Cross multiply
    14,322.76x = 21,484.09 × 8,079.94
  4. Step 4: Simplify right side
    14,322.76x = 173,590,158.15
  5. Step 5: Solve for x
    x = 173,590,158.15/14,322.76
  6. Step 6: Final answer
    x = 12,119.88

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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.