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Finding the Fourth Proportional to 8,493.80, 11,722.18 and 4,717.69

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Solution

The fourth proportional to 8,493.80, 11,722.18 and 4,717.69 is: 6,510.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.80 : 11,722.18 = 4,717.69 : x
  2. Step 2: Convert to fraction form
    8,493.80/11,722.18 = 4,717.69/x
  3. Step 3: Cross multiply
    8,493.80x = 11,722.18 × 4,717.69
  4. Step 4: Simplify right side
    8,493.80x = 55,301,611.36
  5. Step 5: Solve for x
    x = 55,301,611.36/8,493.80
  6. Step 6: Final answer
    x = 6,510.82

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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.