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Finding the Fourth Proportional to 17,611.15, 26,419.02 and 5,760.78

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Solution

The fourth proportional to 17,611.15, 26,419.02 and 5,760.78 is: 8,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611.15 : 26,419.02 = 5,760.78 : x
  2. Step 2: Convert to fraction form
    17,611.15/26,419.02 = 5,760.78/x
  3. Step 3: Cross multiply
    17,611.15x = 26,419.02 × 5,760.78
  4. Step 4: Simplify right side
    17,611.15x = 152,194,162.04
  5. Step 5: Solve for x
    x = 152,194,162.04/17,611.15
  6. Step 6: Final answer
    x = 8,641.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.