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Finding the Fourth Proportional to 9,786.78, 14,680.17 and 8,051.76

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Solution

The fourth proportional to 9,786.78, 14,680.17 and 8,051.76 is: 12,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.78 : 14,680.17 = 8,051.76 : x
  2. Step 2: Convert to fraction form
    9,786.78/14,680.17 = 8,051.76/x
  3. Step 3: Cross multiply
    9,786.78x = 14,680.17 × 8,051.76
  4. Step 4: Simplify right side
    9,786.78x = 118,201,205.60
  5. Step 5: Solve for x
    x = 118,201,205.60/9,786.78
  6. Step 6: Final answer
    x = 12,077.64

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Half scale
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Double scale
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Similar ratio
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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.