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Finding the Fourth Proportional to 45,798.80, 68,701.40 and 18,093.20

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Solution

The fourth proportional to 45,798.80, 68,701.40 and 18,093.20 is: 27,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,798.80 : 68,701.40 = 18,093.20 : x
  2. Step 2: Convert to fraction form
    45,798.80/68,701.40 = 18,093.20/x
  3. Step 3: Cross multiply
    45,798.80x = 68,701.40 × 18,093.20
  4. Step 4: Simplify right side
    45,798.80x = 1,243,028,170.48
  5. Step 5: Solve for x
    x = 1,243,028,170.48/45,798.80
  6. Step 6: Final answer
    x = 27,141.06

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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.