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Finding the Fourth Proportional to 18,622.56, 27,926.82 and 6,140.28

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Solution

The fourth proportional to 18,622.56, 27,926.82 and 6,140.28 is: 9,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.56 : 27,926.82 = 6,140.28 : x
  2. Step 2: Convert to fraction form
    18,622.56/27,926.82 = 6,140.28/x
  3. Step 3: Cross multiply
    18,622.56x = 27,926.82 × 6,140.28
  4. Step 4: Simplify right side
    18,622.56x = 171,478,494.31
  5. Step 5: Solve for x
    x = 171,478,494.31/18,622.56
  6. Step 6: Final answer
    x = 9,208.11

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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.