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Finding the Fourth Proportional to 63,730.80, 95,596.20 and 61,311.60

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Solution

The fourth proportional to 63,730.80, 95,596.20 and 61,311.60 is: 91,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,730.80 : 95,596.20 = 61,311.60 : x
  2. Step 2: Convert to fraction form
    63,730.80/95,596.20 = 61,311.60/x
  3. Step 3: Cross multiply
    63,730.80x = 95,596.20 × 61,311.60
  4. Step 4: Simplify right side
    63,730.80x = 5,861,155,975.92
  5. Step 5: Solve for x
    x = 5,861,155,975.92/63,730.80
  6. Step 6: Final answer
    x = 91,967.40

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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.