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Finding the Fourth Proportional to 14,753.39, 20,359.49 and 8,039.30

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Solution

The fourth proportional to 14,753.39, 20,359.49 and 8,039.30 is: 11,094.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,753.39 : 20,359.49 = 8,039.30 : x
  2. Step 2: Convert to fraction form
    14,753.39/20,359.49 = 8,039.30/x
  3. Step 3: Cross multiply
    14,753.39x = 20,359.49 × 8,039.30
  4. Step 4: Simplify right side
    14,753.39x = 163,675,905.96
  5. Step 5: Solve for x
    x = 163,675,905.96/14,753.39
  6. Step 6: Final answer
    x = 11,094.13

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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.