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Finding the Fourth Proportional to 34,518.76, 47,648.60 and 30,314.60

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Solution

The fourth proportional to 34,518.76, 47,648.60 and 30,314.60 is: 41,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,518.76 : 47,648.60 = 30,314.60 : x
  2. Step 2: Convert to fraction form
    34,518.76/47,648.60 = 30,314.60/x
  3. Step 3: Cross multiply
    34,518.76x = 47,648.60 × 30,314.60
  4. Step 4: Simplify right side
    34,518.76x = 1,444,448,249.56
  5. Step 5: Solve for x
    x = 1,444,448,249.56/34,518.76
  6. Step 6: Final answer
    x = 41,845.31

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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.