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Finding the Fourth Proportional to 11,661.15, 17,492.93 and 4,998.31

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Solution

The fourth proportional to 11,661.15, 17,492.93 and 4,998.31 is: 7,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.15 : 17,492.93 = 4,998.31 : x
  2. Step 2: Convert to fraction form
    11,661.15/17,492.93 = 4,998.31/x
  3. Step 3: Cross multiply
    11,661.15x = 17,492.93 × 4,998.31
  4. Step 4: Simplify right side
    11,661.15x = 87,435,086.95
  5. Step 5: Solve for x
    x = 87,435,086.95/11,661.15
  6. Step 6: Final answer
    x = 7,497.98

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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.