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Finding the Fourth Proportional to 22,457.70, 33,686.55 and 22,311.90

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Solution

The fourth proportional to 22,457.70, 33,686.55 and 22,311.90 is: 33,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,457.70 : 33,686.55 = 22,311.90 : x
  2. Step 2: Convert to fraction form
    22,457.70/33,686.55 = 22,311.90/x
  3. Step 3: Cross multiply
    22,457.70x = 33,686.55 × 22,311.90
  4. Step 4: Simplify right side
    22,457.70x = 751,610,934.95
  5. Step 5: Solve for x
    x = 751,610,934.95/22,457.70
  6. Step 6: Final answer
    x = 33,467.85

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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.