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Finding the Fourth Proportional to 14,743.70, 20,346.68 and 8,029.70

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Solution

The fourth proportional to 14,743.70, 20,346.68 and 8,029.70 is: 11,081.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,743.70 : 20,346.68 = 8,029.70 : x
  2. Step 2: Convert to fraction form
    14,743.70/20,346.68 = 8,029.70/x
  3. Step 3: Cross multiply
    14,743.70x = 20,346.68 × 8,029.70
  4. Step 4: Simplify right side
    14,743.70x = 163,377,736.40
  5. Step 5: Solve for x
    x = 163,377,736.40/14,743.70
  6. Step 6: Final answer
    x = 11,081.19

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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.