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Finding the Fourth Proportional to 19,611.70, 27,064.32 and 10,659.22

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Solution

The fourth proportional to 19,611.70, 27,064.32 and 10,659.22 is: 14,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.70 : 27,064.32 = 10,659.22 : x
  2. Step 2: Convert to fraction form
    19,611.70/27,064.32 = 10,659.22/x
  3. Step 3: Cross multiply
    19,611.70x = 27,064.32 × 10,659.22
  4. Step 4: Simplify right side
    19,611.70x = 288,484,614.83
  5. Step 5: Solve for x
    x = 288,484,614.83/19,611.70
  6. Step 6: Final answer
    x = 14,709.82

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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.