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Finding the Fourth Proportional to 69,904.60, 96,469.50 and 38,074.12

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Solution

The fourth proportional to 69,904.60, 96,469.50 and 38,074.12 is: 52,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,904.60 : 96,469.50 = 38,074.12 : x
  2. Step 2: Convert to fraction form
    69,904.60/96,469.50 = 38,074.12/x
  3. Step 3: Cross multiply
    69,904.60x = 96,469.50 × 38,074.12
  4. Step 4: Simplify right side
    69,904.60x = 3,672,991,319.34
  5. Step 5: Solve for x
    x = 3,672,991,319.34/69,904.60
  6. Step 6: Final answer
    x = 52,542.91

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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.