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Finding the Fourth Proportional to 65,051.50, 89,771.08 and 35,243.50

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Solution

The fourth proportional to 65,051.50, 89,771.08 and 35,243.50 is: 48,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,051.50 : 89,771.08 = 35,243.50 : x
  2. Step 2: Convert to fraction form
    65,051.50/89,771.08 = 35,243.50/x
  3. Step 3: Cross multiply
    65,051.50x = 89,771.08 × 35,243.50
  4. Step 4: Simplify right side
    65,051.50x = 3,163,847,057.98
  5. Step 5: Solve for x
    x = 3,163,847,057.98/65,051.50
  6. Step 6: Final answer
    x = 48,636.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.