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Finding the Fourth Proportional to 18,852.68, 28,279.94 and 6,372.41

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Solution

The fourth proportional to 18,852.68, 28,279.94 and 6,372.41 is: 9,558.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.68 : 28,279.94 = 6,372.41 : x
  2. Step 2: Convert to fraction form
    18,852.68/28,279.94 = 6,372.41/x
  3. Step 3: Cross multiply
    18,852.68x = 28,279.94 × 6,372.41
  4. Step 4: Simplify right side
    18,852.68x = 180,211,199.19
  5. Step 5: Solve for x
    x = 180,211,199.19/18,852.68
  6. Step 6: Final answer
    x = 9,558.92

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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.