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Finding the Fourth Proportional to 22,392.63, 33,583.70 and 9,905.85

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Solution

The fourth proportional to 22,392.63, 33,583.70 and 9,905.85 is: 14,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,392.63 : 33,583.70 = 9,905.85 : x
  2. Step 2: Convert to fraction form
    22,392.63/33,583.70 = 9,905.85/x
  3. Step 3: Cross multiply
    22,392.63x = 33,583.70 × 9,905.85
  4. Step 4: Simplify right side
    22,392.63x = 332,675,045.12
  5. Step 5: Solve for x
    x = 332,675,045.12/22,392.63
  6. Step 6: Final answer
    x = 14,856.45

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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.