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Finding the Fourth Proportional to 8,474.76, 11,695.16 and 5,162.76

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Solution

The fourth proportional to 8,474.76, 11,695.16 and 5,162.76 is: 7,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.76 : 11,695.16 = 5,162.76 : x
  2. Step 2: Convert to fraction form
    8,474.76/11,695.16 = 5,162.76/x
  3. Step 3: Cross multiply
    8,474.76x = 11,695.16 × 5,162.76
  4. Step 4: Simplify right side
    8,474.76x = 60,379,304.24
  5. Step 5: Solve for x
    x = 60,379,304.24/8,474.76
  6. Step 6: Final answer
    x = 7,124.60

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Half scale
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Double 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.