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Finding the Fourth Proportional to 18,292.01, 27,439.64 and 5,144.50

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Solution

The fourth proportional to 18,292.01, 27,439.64 and 5,144.50 is: 7,717.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.01 : 27,439.64 = 5,144.50 : x
  2. Step 2: Convert to fraction form
    18,292.01/27,439.64 = 5,144.50/x
  3. Step 3: Cross multiply
    18,292.01x = 27,439.64 × 5,144.50
  4. Step 4: Simplify right side
    18,292.01x = 141,163,227.98
  5. Step 5: Solve for x
    x = 141,163,227.98/18,292.01
  6. Step 6: Final answer
    x = 7,717.21

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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.