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Finding the Fourth Proportional to 12,093.98, 16,687.76 and 7,057.40

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Solution

The fourth proportional to 12,093.98, 16,687.76 and 7,057.40 is: 9,738.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,093.98 : 16,687.76 = 7,057.40 : x
  2. Step 2: Convert to fraction form
    12,093.98/16,687.76 = 7,057.40/x
  3. Step 3: Cross multiply
    12,093.98x = 16,687.76 × 7,057.40
  4. Step 4: Simplify right side
    12,093.98x = 117,772,197.42
  5. Step 5: Solve for x
    x = 117,772,197.42/12,093.98
  6. Step 6: Final answer
    x = 9,738.08

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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.