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Finding the Fourth Proportional to 66,435.84, 99,607.68 and 35,292.96

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Solution

The fourth proportional to 66,435.84, 99,607.68 and 35,292.96 is: 52,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,435.84 : 99,607.68 = 35,292.96 : x
  2. Step 2: Convert to fraction form
    66,435.84/99,607.68 = 35,292.96/x
  3. Step 3: Cross multiply
    66,435.84x = 99,607.68 × 35,292.96
  4. Step 4: Simplify right side
    66,435.84x = 3,515,449,865.93
  5. Step 5: Solve for x
    x = 3,515,449,865.93/66,435.84
  6. Step 6: Final answer
    x = 52,914.96

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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.