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Finding the Fourth Proportional to 18,572.90, 27,860.25 and 6,087.86

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Solution

The fourth proportional to 18,572.90, 27,860.25 and 6,087.86 is: 9,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572.90 : 27,860.25 = 6,087.86 : x
  2. Step 2: Convert to fraction form
    18,572.90/27,860.25 = 6,087.86/x
  3. Step 3: Cross multiply
    18,572.90x = 27,860.25 × 6,087.86
  4. Step 4: Simplify right side
    18,572.90x = 169,609,289.57
  5. Step 5: Solve for x
    x = 169,609,289.57/18,572.90
  6. Step 6: Final answer
    x = 9,132.09

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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.