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Finding the Fourth Proportional to 18,341.56, 27,528.06 and 18,203.50

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Solution

The fourth proportional to 18,341.56, 27,528.06 and 18,203.50 is: 27,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.56 : 27,528.06 = 18,203.50 : x
  2. Step 2: Convert to fraction form
    18,341.56/27,528.06 = 18,203.50/x
  3. Step 3: Cross multiply
    18,341.56x = 27,528.06 × 18,203.50
  4. Step 4: Simplify right side
    18,341.56x = 501,107,040.21
  5. Step 5: Solve for x
    x = 501,107,040.21/18,341.56
  6. Step 6: Final answer
    x = 27,320.85

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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.