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Finding the Fourth Proportional to 22,443.70, 30,970.92 and 12,371.62

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Solution

The fourth proportional to 22,443.70, 30,970.92 and 12,371.62 is: 17,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,443.70 : 30,970.92 = 12,371.62 : x
  2. Step 2: Convert to fraction form
    22,443.70/30,970.92 = 12,371.62/x
  3. Step 3: Cross multiply
    22,443.70x = 30,970.92 × 12,371.62
  4. Step 4: Simplify right side
    22,443.70x = 383,160,453.29
  5. Step 5: Solve for x
    x = 383,160,453.29/22,443.70
  6. Step 6: Final answer
    x = 17,072.07

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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.