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Finding the Fourth Proportional to 65,441.80, 98,235.60 and 35,917.30

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Solution

The fourth proportional to 65,441.80, 98,235.60 and 35,917.30 is: 53,915.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,441.80 : 98,235.60 = 35,917.30 : x
  2. Step 2: Convert to fraction form
    65,441.80/98,235.60 = 35,917.30/x
  3. Step 3: Cross multiply
    65,441.80x = 98,235.60 × 35,917.30
  4. Step 4: Simplify right side
    65,441.80x = 3,528,357,515.88
  5. Step 5: Solve for x
    x = 3,528,357,515.88/65,441.80
  6. Step 6: Final answer
    x = 53,915.96

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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.