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Finding the Fourth Proportional to 18,394.70, 27,592.30 and 5,247.07

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Solution

The fourth proportional to 18,394.70, 27,592.30 and 5,247.07 is: 7,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.70 : 27,592.30 = 5,247.07 : x
  2. Step 2: Convert to fraction form
    18,394.70/27,592.30 = 5,247.07/x
  3. Step 3: Cross multiply
    18,394.70x = 27,592.30 × 5,247.07
  4. Step 4: Simplify right side
    18,394.70x = 144,778,729.56
  5. Step 5: Solve for x
    x = 144,778,729.56/18,394.70
  6. Step 6: Final answer
    x = 7,870.68

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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.