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Finding the Fourth Proportional to 12,048.86, 18,049.90 and 8,880.54

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Solution

The fourth proportional to 12,048.86, 18,049.90 and 8,880.54 is: 13,303.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048.86 : 18,049.90 = 8,880.54 : x
  2. Step 2: Convert to fraction form
    12,048.86/18,049.90 = 8,880.54/x
  3. Step 3: Cross multiply
    12,048.86x = 18,049.90 × 8,880.54
  4. Step 4: Simplify right side
    12,048.86x = 160,292,858.95
  5. Step 5: Solve for x
    x = 160,292,858.95/12,048.86
  6. Step 6: Final answer
    x = 13,303.57

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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.