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Finding the Fourth Proportional to 22,013.70, 33,020.55 and 18,384.90

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Solution

The fourth proportional to 22,013.70, 33,020.55 and 18,384.90 is: 27,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,013.70 : 33,020.55 = 18,384.90 : x
  2. Step 2: Convert to fraction form
    22,013.70/33,020.55 = 18,384.90/x
  3. Step 3: Cross multiply
    22,013.70x = 33,020.55 × 18,384.90
  4. Step 4: Simplify right side
    22,013.70x = 607,079,509.70
  5. Step 5: Solve for x
    x = 607,079,509.70/22,013.70
  6. Step 6: Final answer
    x = 27,577.35

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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.