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Finding the Fourth Proportional to 11,006.51, 16,510.80 and 3,611.00

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Solution

The fourth proportional to 11,006.51, 16,510.80 and 3,611.00 is: 5,416.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.51 : 16,510.80 = 3,611.00 : x
  2. Step 2: Convert to fraction form
    11,006.51/16,510.80 = 3,611.00/x
  3. Step 3: Cross multiply
    11,006.51x = 16,510.80 × 3,611.00
  4. Step 4: Simplify right side
    11,006.51x = 59,620,416.25
  5. Step 5: Solve for x
    x = 59,620,416.25/11,006.51
  6. Step 6: Final answer
    x = 5,416.83

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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.