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Finding the Fourth Proportional to 12,348.60, 18,468.90 and 11,041.80

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Solution

The fourth proportional to 12,348.60, 18,468.90 and 11,041.80 is: 16,514.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.60 : 18,468.90 = 11,041.80 : x
  2. Step 2: Convert to fraction form
    12,348.60/18,468.90 = 11,041.80/x
  3. Step 3: Cross multiply
    12,348.60x = 18,468.90 × 11,041.80
  4. Step 4: Simplify right side
    12,348.60x = 203,929,900.02
  5. Step 5: Solve for x
    x = 203,929,900.02/12,348.60
  6. Step 6: Final answer
    x = 16,514.41

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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.