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Finding the Fourth Proportional to 19,611.96, 27,064.67 and 10,659.47

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Solution

The fourth proportional to 19,611.96, 27,064.67 and 10,659.47 is: 14,710.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.96 : 27,064.67 = 10,659.47 : x
  2. Step 2: Convert to fraction form
    19,611.96/27,064.67 = 10,659.47/x
  3. Step 3: Cross multiply
    19,611.96x = 27,064.67 × 10,659.47
  4. Step 4: Simplify right side
    19,611.96x = 288,495,037.92
  5. Step 5: Solve for x
    x = 288,495,037.92/19,611.96
  6. Step 6: Final answer
    x = 14,710.16

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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.