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Finding the Fourth Proportional to 18,442.53, 27,663.78 and 6,756.66

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Solution

The fourth proportional to 18,442.53, 27,663.78 and 6,756.66 is: 10,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.53 : 27,663.78 = 6,756.66 : x
  2. Step 2: Convert to fraction form
    18,442.53/27,663.78 = 6,756.66/x
  3. Step 3: Cross multiply
    18,442.53x = 27,663.78 × 6,756.66
  4. Step 4: Simplify right side
    18,442.53x = 186,914,755.77
  5. Step 5: Solve for x
    x = 186,914,755.77/18,442.53
  6. Step 6: Final answer
    x = 10,134.98

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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.