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Finding the Fourth Proportional to 19,611.71, 27,064.07 and 10,659.18

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Solution

The fourth proportional to 19,611.71, 27,064.07 and 10,659.18 is: 14,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.71 : 27,064.07 = 10,659.18 : x
  2. Step 2: Convert to fraction form
    19,611.71/27,064.07 = 10,659.18/x
  3. Step 3: Cross multiply
    19,611.71x = 27,064.07 × 10,659.18
  4. Step 4: Simplify right side
    19,611.71x = 288,480,793.66
  5. Step 5: Solve for x
    x = 288,480,793.66/19,611.71
  6. Step 6: Final answer
    x = 14,709.62

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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.