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Finding the Fourth Proportional to 18,014.87, 24,860.77 and 9,949.07

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Solution

The fourth proportional to 18,014.87, 24,860.77 and 9,949.07 is: 13,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,014.87 : 24,860.77 = 9,949.07 : x
  2. Step 2: Convert to fraction form
    18,014.87/24,860.77 = 9,949.07/x
  3. Step 3: Cross multiply
    18,014.87x = 24,860.77 × 9,949.07
  4. Step 4: Simplify right side
    18,014.87x = 247,341,641.22
  5. Step 5: Solve for x
    x = 247,341,641.22/18,014.87
  6. Step 6: Final answer
    x = 13,729.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.