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Finding the Fourth Proportional to 14,393.98, 19,863.66 and 8,106.34

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Solution

The fourth proportional to 14,393.98, 19,863.66 and 8,106.34 is: 11,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.98 : 19,863.66 = 8,106.34 : x
  2. Step 2: Convert to fraction form
    14,393.98/19,863.66 = 8,106.34/x
  3. Step 3: Cross multiply
    14,393.98x = 19,863.66 × 8,106.34
  4. Step 4: Simplify right side
    14,393.98x = 161,021,581.60
  5. Step 5: Solve for x
    x = 161,021,581.60/14,393.98
  6. Step 6: Final answer
    x = 11,186.73

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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.