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Finding the Fourth Proportional to 18,057.78, 27,083.43 and 6,368.94

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Solution

The fourth proportional to 18,057.78, 27,083.43 and 6,368.94 is: 9,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.78 : 27,083.43 = 6,368.94 : x
  2. Step 2: Convert to fraction form
    18,057.78/27,083.43 = 6,368.94/x
  3. Step 3: Cross multiply
    18,057.78x = 27,083.43 × 6,368.94
  4. Step 4: Simplify right side
    18,057.78x = 172,492,740.66
  5. Step 5: Solve for x
    x = 172,492,740.66/18,057.78
  6. Step 6: Final answer
    x = 9,552.27

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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.