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Finding the Fourth Proportional to 18,804.97, 28,207.95 and 6,325.21

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Solution

The fourth proportional to 18,804.97, 28,207.95 and 6,325.21 is: 9,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.97 : 28,207.95 = 6,325.21 : x
  2. Step 2: Convert to fraction form
    18,804.97/28,207.95 = 6,325.21/x
  3. Step 3: Cross multiply
    18,804.97x = 28,207.95 × 6,325.21
  4. Step 4: Simplify right side
    18,804.97x = 178,421,207.42
  5. Step 5: Solve for x
    x = 178,421,207.42/18,804.97
  6. Step 6: Final answer
    x = 9,487.98

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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.