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Finding the Fourth Proportional to 14,993.13, 20,671.28 and 12,294.41

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Solution

The fourth proportional to 14,993.13, 20,671.28 and 12,294.41 is: 16,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.13 : 20,671.28 = 12,294.41 : x
  2. Step 2: Convert to fraction form
    14,993.13/20,671.28 = 12,294.41/x
  3. Step 3: Cross multiply
    14,993.13x = 20,671.28 × 12,294.41
  4. Step 4: Simplify right side
    14,993.13x = 254,141,191.54
  5. Step 5: Solve for x
    x = 254,141,191.54/14,993.13
  6. Step 6: Final answer
    x = 16,950.51

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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.