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Finding the Fourth Proportional to 47,950.62, 66,200.20 and 42,630.72

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Solution

The fourth proportional to 47,950.62, 66,200.20 and 42,630.72 is: 58,855.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,950.62 : 66,200.20 = 42,630.72 : x
  2. Step 2: Convert to fraction form
    47,950.62/66,200.20 = 42,630.72/x
  3. Step 3: Cross multiply
    47,950.62x = 66,200.20 × 42,630.72
  4. Step 4: Simplify right side
    47,950.62x = 2,822,162,190.14
  5. Step 5: Solve for x
    x = 2,822,162,190.14/47,950.62
  6. Step 6: Final answer
    x = 58,855.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.