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Finding the Fourth Proportional to 14,693.62, 20,279.82 and 10,709.78

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Solution

The fourth proportional to 14,693.62, 20,279.82 and 10,709.78 is: 14,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,693.62 : 20,279.82 = 10,709.78 : x
  2. Step 2: Convert to fraction form
    14,693.62/20,279.82 = 10,709.78/x
  3. Step 3: Cross multiply
    14,693.62x = 20,279.82 × 10,709.78
  4. Step 4: Simplify right side
    14,693.62x = 217,192,410.64
  5. Step 5: Solve for x
    x = 217,192,410.64/14,693.62
  6. Step 6: Final answer
    x = 14,781.41

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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.