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Finding the Fourth Proportional to 71,906.37, 99,410.14 and 53,970.24

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Solution

The fourth proportional to 71,906.37, 99,410.14 and 53,970.24 is: 74,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,906.37 : 99,410.14 = 53,970.24 : x
  2. Step 2: Convert to fraction form
    71,906.37/99,410.14 = 53,970.24/x
  3. Step 3: Cross multiply
    71,906.37x = 99,410.14 × 53,970.24
  4. Step 4: Simplify right side
    71,906.37x = 5,365,189,114.23
  5. Step 5: Solve for x
    x = 5,365,189,114.23/71,906.37
  6. Step 6: Final answer
    x = 74,613.54

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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.