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Finding the Fourth Proportional to 22,335.81, 33,459.92 and 12,956.12

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Solution

The fourth proportional to 22,335.81, 33,459.92 and 12,956.12 is: 19,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,335.81 : 33,459.92 = 12,956.12 : x
  2. Step 2: Convert to fraction form
    22,335.81/33,459.92 = 12,956.12/x
  3. Step 3: Cross multiply
    22,335.81x = 33,459.92 × 12,956.12
  4. Step 4: Simplify right side
    22,335.81x = 433,510,738.71
  5. Step 5: Solve for x
    x = 433,510,738.71/22,335.81
  6. Step 6: Final answer
    x = 19,408.78

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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.