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Finding the Fourth Proportional to 18,066.53, 27,100.14 and 4,919.24

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Solution

The fourth proportional to 18,066.53, 27,100.14 and 4,919.24 is: 7,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,066.53 : 27,100.14 = 4,919.24 : x
  2. Step 2: Convert to fraction form
    18,066.53/27,100.14 = 4,919.24/x
  3. Step 3: Cross multiply
    18,066.53x = 27,100.14 × 4,919.24
  4. Step 4: Simplify right side
    18,066.53x = 133,312,092.69
  5. Step 5: Solve for x
    x = 133,312,092.69/18,066.53
  6. Step 6: Final answer
    x = 7,378.95

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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.