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Finding the Fourth Proportional to 63,630.80, 95,446.20 and 61,211.60

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Solution

The fourth proportional to 63,630.80, 95,446.20 and 61,211.60 is: 91,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,630.80 : 95,446.20 = 61,211.60 : x
  2. Step 2: Convert to fraction form
    63,630.80/95,446.20 = 61,211.60/x
  3. Step 3: Cross multiply
    63,630.80x = 95,446.20 × 61,211.60
  4. Step 4: Simplify right side
    63,630.80x = 5,842,414,615.92
  5. Step 5: Solve for x
    x = 5,842,414,615.92/63,630.80
  6. Step 6: Final answer
    x = 91,817.40

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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.