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Finding the Fourth Proportional to 15,046.92, 20,768.22 and 14,343.84

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Solution

The fourth proportional to 15,046.92, 20,768.22 and 14,343.84 is: 19,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.92 : 20,768.22 = 14,343.84 : x
  2. Step 2: Convert to fraction form
    15,046.92/20,768.22 = 14,343.84/x
  3. Step 3: Cross multiply
    15,046.92x = 20,768.22 × 14,343.84
  4. Step 4: Simplify right side
    15,046.92x = 297,896,024.76
  5. Step 5: Solve for x
    x = 297,896,024.76/15,046.92
  6. Step 6: Final answer
    x = 19,797.81

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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.