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Finding the Fourth Proportional to 11,984.98, 17,871.86 and 11,153.92

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Solution

The fourth proportional to 11,984.98, 17,871.86 and 11,153.92 is: 16,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.98 : 17,871.86 = 11,153.92 : x
  2. Step 2: Convert to fraction form
    11,984.98/17,871.86 = 11,153.92/x
  3. Step 3: Cross multiply
    11,984.98x = 17,871.86 × 11,153.92
  4. Step 4: Simplify right side
    11,984.98x = 199,341,296.69
  5. Step 5: Solve for x
    x = 199,341,296.69/11,984.98
  6. Step 6: Final answer
    x = 16,632.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.