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Finding the Fourth Proportional to 14,463.62, 19,960.77 and 8,090.80

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Solution

The fourth proportional to 14,463.62, 19,960.77 and 8,090.80 is: 11,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,463.62 : 19,960.77 = 8,090.80 : x
  2. Step 2: Convert to fraction form
    14,463.62/19,960.77 = 8,090.80/x
  3. Step 3: Cross multiply
    14,463.62x = 19,960.77 × 8,090.80
  4. Step 4: Simplify right side
    14,463.62x = 161,498,597.92
  5. Step 5: Solve for x
    x = 161,498,597.92/14,463.62
  6. Step 6: Final answer
    x = 11,165.85

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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.