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Finding the Fourth Proportional to 22,007.71, 30,370.55 and 11,936.11

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Solution

The fourth proportional to 22,007.71, 30,370.55 and 11,936.11 is: 16,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,007.71 : 30,370.55 = 11,936.11 : x
  2. Step 2: Convert to fraction form
    22,007.71/30,370.55 = 11,936.11/x
  3. Step 3: Cross multiply
    22,007.71x = 30,370.55 × 11,936.11
  4. Step 4: Simplify right side
    22,007.71x = 362,506,089.95
  5. Step 5: Solve for x
    x = 362,506,089.95/22,007.71
  6. Step 6: Final answer
    x = 16,471.78

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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.