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Finding the Fourth Proportional to 18,591.93, 27,888.50 and 6,748.11

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Solution

The fourth proportional to 18,591.93, 27,888.50 and 6,748.11 is: 10,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.93 : 27,888.50 = 6,748.11 : x
  2. Step 2: Convert to fraction form
    18,591.93/27,888.50 = 6,748.11/x
  3. Step 3: Cross multiply
    18,591.93x = 27,888.50 × 6,748.11
  4. Step 4: Simplify right side
    18,591.93x = 188,194,682.61
  5. Step 5: Solve for x
    x = 188,194,682.61/18,591.93
  6. Step 6: Final answer
    x = 10,122.39

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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.