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Finding the Fourth Proportional to 64,930.80, 97,396.20 and 37,231.60

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Solution

The fourth proportional to 64,930.80, 97,396.20 and 37,231.60 is: 55,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,930.80 : 97,396.20 = 37,231.60 : x
  2. Step 2: Convert to fraction form
    64,930.80/97,396.20 = 37,231.60/x
  3. Step 3: Cross multiply
    64,930.80x = 97,396.20 × 37,231.60
  4. Step 4: Simplify right side
    64,930.80x = 3,626,216,359.92
  5. Step 5: Solve for x
    x = 3,626,216,359.92/64,930.80
  6. Step 6: Final answer
    x = 55,847.40

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1.5x scale

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.