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Finding the Fourth Proportional to 14,835.41, 20,472.07 and 8,119.74

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Solution

The fourth proportional to 14,835.41, 20,472.07 and 8,119.74 is: 11,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,835.41 : 20,472.07 = 8,119.74 : x
  2. Step 2: Convert to fraction form
    14,835.41/20,472.07 = 8,119.74/x
  3. Step 3: Cross multiply
    14,835.41x = 20,472.07 × 8,119.74
  4. Step 4: Simplify right side
    14,835.41x = 166,227,885.66
  5. Step 5: Solve for x
    x = 166,227,885.66/14,835.41
  6. Step 6: Final answer
    x = 11,204.81

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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.