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Finding the Fourth Proportional to 18,068.31, 24,935.04 and 11,170.98

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Solution

The fourth proportional to 18,068.31, 24,935.04 and 11,170.98 is: 15,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068.31 : 24,935.04 = 11,170.98 : x
  2. Step 2: Convert to fraction form
    18,068.31/24,935.04 = 11,170.98/x
  3. Step 3: Cross multiply
    18,068.31x = 24,935.04 × 11,170.98
  4. Step 4: Simplify right side
    18,068.31x = 278,548,833.14
  5. Step 5: Solve for x
    x = 278,548,833.14/18,068.31
  6. Step 6: Final answer
    x = 15,416.43

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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.