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Finding the Fourth Proportional to 19,611.58, 27,064.19 and 10,659.08

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Solution

The fourth proportional to 19,611.58, 27,064.19 and 10,659.08 is: 14,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.58 : 27,064.19 = 10,659.08 : x
  2. Step 2: Convert to fraction form
    19,611.58/27,064.19 = 10,659.08/x
  3. Step 3: Cross multiply
    19,611.58x = 27,064.19 × 10,659.08
  4. Step 4: Simplify right side
    19,611.58x = 288,479,460.65
  5. Step 5: Solve for x
    x = 288,479,460.65/19,611.58
  6. Step 6: Final answer
    x = 14,709.65

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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.