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Finding the Fourth Proportional to 66,582.56, 99,874.22 and 22,209.18

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Solution

The fourth proportional to 66,582.56, 99,874.22 and 22,209.18 is: 33,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,582.56 : 99,874.22 = 22,209.18 : x
  2. Step 2: Convert to fraction form
    66,582.56/99,874.22 = 22,209.18/x
  3. Step 3: Cross multiply
    66,582.56x = 99,874.22 × 22,209.18
  4. Step 4: Simplify right side
    66,582.56x = 2,218,124,529.34
  5. Step 5: Solve for x
    x = 2,218,124,529.34/66,582.56
  6. Step 6: Final answer
    x = 33,313.90

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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.