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Finding the Fourth Proportional to 14,435.10, 19,918.42 and 8,060.80

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Solution

The fourth proportional to 14,435.10, 19,918.42 and 8,060.80 is: 11,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.10 : 19,918.42 = 8,060.80 : x
  2. Step 2: Convert to fraction form
    14,435.10/19,918.42 = 8,060.80/x
  3. Step 3: Cross multiply
    14,435.10x = 19,918.42 × 8,060.80
  4. Step 4: Simplify right side
    14,435.10x = 160,558,399.94
  5. Step 5: Solve for x
    x = 160,558,399.94/14,435.10
  6. Step 6: Final answer
    x = 11,122.78

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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.