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Finding the Fourth Proportional to 14,393.75, 19,863.42 and 8,106.26

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Solution

The fourth proportional to 14,393.75, 19,863.42 and 8,106.26 is: 11,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.75 : 19,863.42 = 8,106.26 : x
  2. Step 2: Convert to fraction form
    14,393.75/19,863.42 = 8,106.26/x
  3. Step 3: Cross multiply
    14,393.75x = 19,863.42 × 8,106.26
  4. Step 4: Simplify right side
    14,393.75x = 161,018,047.01
  5. Step 5: Solve for x
    x = 161,018,047.01/14,393.75
  6. Step 6: Final answer
    x = 11,186.66

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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.