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Finding the Fourth Proportional to 14,191.98, 19,443.11 and 13,659.93

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Solution

The fourth proportional to 14,191.98, 19,443.11 and 13,659.93 is: 18,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.98 : 19,443.11 = 13,659.93 : x
  2. Step 2: Convert to fraction form
    14,191.98/19,443.11 = 13,659.93/x
  3. Step 3: Cross multiply
    14,191.98x = 19,443.11 × 13,659.93
  4. Step 4: Simplify right side
    14,191.98x = 265,591,521.58
  5. Step 5: Solve for x
    x = 265,591,521.58/14,191.98
  6. Step 6: Final answer
    x = 18,714.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.