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Finding the Fourth Proportional to 14,168.59, 21,243.77 and 6,772.88

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Solution

The fourth proportional to 14,168.59, 21,243.77 and 6,772.88 is: 10,154.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.59 : 21,243.77 = 6,772.88 : x
  2. Step 2: Convert to fraction form
    14,168.59/21,243.77 = 6,772.88/x
  3. Step 3: Cross multiply
    14,168.59x = 21,243.77 × 6,772.88
  4. Step 4: Simplify right side
    14,168.59x = 143,881,471.09
  5. Step 5: Solve for x
    x = 143,881,471.09/14,168.59
  6. Step 6: Final answer
    x = 10,154.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.