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Finding the Fourth Proportional to 47,998.90, 71,998.35 and 44,499.70

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Solution

The fourth proportional to 47,998.90, 71,998.35 and 44,499.70 is: 66,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,998.90 : 71,998.35 = 44,499.70 : x
  2. Step 2: Convert to fraction form
    47,998.90/71,998.35 = 44,499.70/x
  3. Step 3: Cross multiply
    47,998.90x = 71,998.35 × 44,499.70
  4. Step 4: Simplify right side
    47,998.90x = 3,203,904,975.50
  5. Step 5: Solve for x
    x = 3,203,904,975.50/47,998.90
  6. Step 6: Final answer
    x = 66,749.55

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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.