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Finding the Fourth Proportional to 19,793.72, 27,315.41 and 10,841.28

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Solution

The fourth proportional to 19,793.72, 27,315.41 and 10,841.28 is: 14,961.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.72 : 27,315.41 = 10,841.28 : x
  2. Step 2: Convert to fraction form
    19,793.72/27,315.41 = 10,841.28/x
  3. Step 3: Cross multiply
    19,793.72x = 27,315.41 × 10,841.28
  4. Step 4: Simplify right side
    19,793.72x = 296,133,953.92
  5. Step 5: Solve for x
    x = 296,133,953.92/19,793.72
  6. Step 6: Final answer
    x = 14,961.01

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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.