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Finding the Fourth Proportional to 12,484.85, 17,228.99 and 6,819.59

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Solution

The fourth proportional to 12,484.85, 17,228.99 and 6,819.59 is: 9,410.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.85 : 17,228.99 = 6,819.59 : x
  2. Step 2: Convert to fraction form
    12,484.85/17,228.99 = 6,819.59/x
  3. Step 3: Cross multiply
    12,484.85x = 17,228.99 × 6,819.59
  4. Step 4: Simplify right side
    12,484.85x = 117,494,708.04
  5. Step 5: Solve for x
    x = 117,494,708.04/12,484.85
  6. Step 6: Final answer
    x = 9,410.99

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Half scale
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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.