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Finding the Fourth Proportional to 8,116.70, 12,175.05 and 6,707.30

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Solution

The fourth proportional to 8,116.70, 12,175.05 and 6,707.30 is: 10,060.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.70 : 12,175.05 = 6,707.30 : x
  2. Step 2: Convert to fraction form
    8,116.70/12,175.05 = 6,707.30/x
  3. Step 3: Cross multiply
    8,116.70x = 12,175.05 × 6,707.30
  4. Step 4: Simplify right side
    8,116.70x = 81,661,712.87
  5. Step 5: Solve for x
    x = 81,661,712.87/8,116.70
  6. Step 6: Final answer
    x = 10,060.95

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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.