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Finding the Fourth Proportional to 47,304.60, 70,956.90 and 45,000.60

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Solution

The fourth proportional to 47,304.60, 70,956.90 and 45,000.60 is: 67,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,304.60 : 70,956.90 = 45,000.60 : x
  2. Step 2: Convert to fraction form
    47,304.60/70,956.90 = 45,000.60/x
  3. Step 3: Cross multiply
    47,304.60x = 70,956.90 × 45,000.60
  4. Step 4: Simplify right side
    47,304.60x = 3,193,103,074.14
  5. Step 5: Solve for x
    x = 3,193,103,074.14/47,304.60
  6. Step 6: Final answer
    x = 67,500.90

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Similar ratio
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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.