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Finding the Fourth Proportional to 18,560.50, 27,840.21 and 6,873.46

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Solution

The fourth proportional to 18,560.50, 27,840.21 and 6,873.46 is: 10,309.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.50 : 27,840.21 = 6,873.46 : x
  2. Step 2: Convert to fraction form
    18,560.50/27,840.21 = 6,873.46/x
  3. Step 3: Cross multiply
    18,560.50x = 27,840.21 × 6,873.46
  4. Step 4: Simplify right side
    18,560.50x = 191,358,569.83
  5. Step 5: Solve for x
    x = 191,358,569.83/18,560.50
  6. Step 6: Final answer
    x = 10,309.99

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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.