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Finding the Fourth Proportional to 14,393.51, 19,863.60 and 8,343.95

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Solution

The fourth proportional to 14,393.51, 19,863.60 and 8,343.95 is: 11,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.51 : 19,863.60 = 8,343.95 : x
  2. Step 2: Convert to fraction form
    14,393.51/19,863.60 = 8,343.95/x
  3. Step 3: Cross multiply
    14,393.51x = 19,863.60 × 8,343.95
  4. Step 4: Simplify right side
    14,393.51x = 165,740,785.90
  5. Step 5: Solve for x
    x = 165,740,785.90/14,393.51
  6. Step 6: Final answer
    x = 11,514.97

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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.