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Finding the Fourth Proportional to 47,509.90, 71,236.05 and 23,789.86

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Solution

The fourth proportional to 47,509.90, 71,236.05 and 23,789.86 is: 35,670.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,509.90 : 71,236.05 = 23,789.86 : x
  2. Step 2: Convert to fraction form
    47,509.90/71,236.05 = 23,789.86/x
  3. Step 3: Cross multiply
    47,509.90x = 71,236.05 × 23,789.86
  4. Step 4: Simplify right side
    47,509.90x = 1,694,695,656.45
  5. Step 5: Solve for x
    x = 1,694,695,656.45/47,509.90
  6. Step 6: Final answer
    x = 35,670.37

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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.