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Finding the Fourth Proportional to 14,381.43, 19,845.61 and 8,094.21

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Solution

The fourth proportional to 14,381.43, 19,845.61 and 8,094.21 is: 11,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.43 : 19,845.61 = 8,094.21 : x
  2. Step 2: Convert to fraction form
    14,381.43/19,845.61 = 8,094.21/x
  3. Step 3: Cross multiply
    14,381.43x = 19,845.61 × 8,094.21
  4. Step 4: Simplify right side
    14,381.43x = 160,634,534.92
  5. Step 5: Solve for x
    x = 160,634,534.92/14,381.43
  6. Step 6: Final answer
    x = 11,169.58

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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.