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Finding the Fourth Proportional to 8,674.63, 11,960.06 and 7,079.66

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Solution

The fourth proportional to 8,674.63, 11,960.06 and 7,079.66 is: 9,761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.63 : 11,960.06 = 7,079.66 : x
  2. Step 2: Convert to fraction form
    8,674.63/11,960.06 = 7,079.66/x
  3. Step 3: Cross multiply
    8,674.63x = 11,960.06 × 7,079.66
  4. Step 4: Simplify right side
    8,674.63x = 84,673,116.28
  5. Step 5: Solve for x
    x = 84,673,116.28/8,674.63
  6. Step 6: Final answer
    x = 9,761.01

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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.