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Finding the Fourth Proportional to 12,671.82, 17,492.02 and 11,343.22

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Solution

The fourth proportional to 12,671.82, 17,492.02 and 11,343.22 is: 15,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.82 : 17,492.02 = 11,343.22 : x
  2. Step 2: Convert to fraction form
    12,671.82/17,492.02 = 11,343.22/x
  3. Step 3: Cross multiply
    12,671.82x = 17,492.02 × 11,343.22
  4. Step 4: Simplify right side
    12,671.82x = 198,415,759.02
  5. Step 5: Solve for x
    x = 198,415,759.02/12,671.82
  6. Step 6: Final answer
    x = 15,658.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.