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Finding the Fourth Proportional to 66,655.75, 99,963.31 and 35,048.67

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Solution

The fourth proportional to 66,655.75, 99,963.31 and 35,048.67 is: 52,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,655.75 : 99,963.31 = 35,048.67 : x
  2. Step 2: Convert to fraction form
    66,655.75/99,963.31 = 35,048.67/x
  3. Step 3: Cross multiply
    66,655.75x = 99,963.31 × 35,048.67
  4. Step 4: Simplify right side
    66,655.75x = 3,503,580,853.75
  5. Step 5: Solve for x
    x = 3,503,580,853.75/66,655.75
  6. Step 6: Final answer
    x = 52,562.32

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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.