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Finding the Fourth Proportional to 22,237.90, 33,363.18 and 7,447.72

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Solution

The fourth proportional to 22,237.90, 33,363.18 and 7,447.72 is: 11,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,237.90 : 33,363.18 = 7,447.72 : x
  2. Step 2: Convert to fraction form
    22,237.90/33,363.18 = 7,447.72/x
  3. Step 3: Cross multiply
    22,237.90x = 33,363.18 × 7,447.72
  4. Step 4: Simplify right side
    22,237.90x = 248,479,622.95
  5. Step 5: Solve for x
    x = 248,479,622.95/22,237.90
  6. Step 6: Final answer
    x = 11,173.70

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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.