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Finding the Fourth Proportional to 65,063.20, 97,605.60 and 25,621.60

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Solution

The fourth proportional to 65,063.20, 97,605.60 and 25,621.60 is: 38,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,063.20 : 97,605.60 = 25,621.60 : x
  2. Step 2: Convert to fraction form
    65,063.20/97,605.60 = 25,621.60/x
  3. Step 3: Cross multiply
    65,063.20x = 97,605.60 × 25,621.60
  4. Step 4: Simplify right side
    65,063.20x = 2,500,811,640.96
  5. Step 5: Solve for x
    x = 2,500,811,640.96/65,063.20
  6. Step 6: Final answer
    x = 38,436.65

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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.