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Finding the Fourth Proportional to 66,662.64, 99,956.52 and 22,266

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Solution

The fourth proportional to 66,662.64, 99,956.52 and 22,266 is: 33,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,662.64 : 99,956.52 = 22,266 : x
  2. Step 2: Convert to fraction form
    66,662.64/99,956.52 = 22,266/x
  3. Step 3: Cross multiply
    66,662.64x = 99,956.52 × 22,266
  4. Step 4: Simplify right side
    66,662.64x = 2,225,631,874.32
  5. Step 5: Solve for x
    x = 2,225,631,874.32/66,662.64
  6. Step 6: Final answer
    x = 33,386.49

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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.