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Finding the Fourth Proportional to 18,380.25, 27,526.50 and 10,572.66

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Solution

The fourth proportional to 18,380.25, 27,526.50 and 10,572.66 is: 15,833.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.25 : 27,526.50 = 10,572.66 : x
  2. Step 2: Convert to fraction form
    18,380.25/27,526.50 = 10,572.66/x
  3. Step 3: Cross multiply
    18,380.25x = 27,526.50 × 10,572.66
  4. Step 4: Simplify right side
    18,380.25x = 291,028,325.49
  5. Step 5: Solve for x
    x = 291,028,325.49/18,380.25
  6. Step 6: Final answer
    x = 15,833.75

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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.