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Finding the Fourth Proportional to 14,395.72, 19,866.14 and 8,347.14

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Solution

The fourth proportional to 14,395.72, 19,866.14 and 8,347.14 is: 11,519.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,395.72 : 19,866.14 = 8,347.14 : x
  2. Step 2: Convert to fraction form
    14,395.72/19,866.14 = 8,347.14/x
  3. Step 3: Cross multiply
    14,395.72x = 19,866.14 × 8,347.14
  4. Step 4: Simplify right side
    14,395.72x = 165,825,310.77
  5. Step 5: Solve for x
    x = 165,825,310.77/14,395.72
  6. Step 6: Final answer
    x = 11,519.07

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Similar ratio
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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.