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Finding the Fourth Proportional to 18,562.79, 27,850.57 and 5,417.10

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Solution

The fourth proportional to 18,562.79, 27,850.57 and 5,417.10 is: 8,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.79 : 27,850.57 = 5,417.10 : x
  2. Step 2: Convert to fraction form
    18,562.79/27,850.57 = 5,417.10/x
  3. Step 3: Cross multiply
    18,562.79x = 27,850.57 × 5,417.10
  4. Step 4: Simplify right side
    18,562.79x = 150,869,309.20
  5. Step 5: Solve for x
    x = 150,869,309.20/18,562.79
  6. Step 6: Final answer
    x = 8,127.51

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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.