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Finding the Fourth Proportional to 11,500.84, 17,228.58 and 10,690.84

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Solution

The fourth proportional to 11,500.84, 17,228.58 and 10,690.84 is: 16,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,500.84 : 17,228.58 = 10,690.84 : x
  2. Step 2: Convert to fraction form
    11,500.84/17,228.58 = 10,690.84/x
  3. Step 3: Cross multiply
    11,500.84x = 17,228.58 × 10,690.84
  4. Step 4: Simplify right side
    11,500.84x = 184,187,992.21
  5. Step 5: Solve for x
    x = 184,187,992.21/11,500.84
  6. Step 6: Final answer
    x = 16,015.18

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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.