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Finding the Fourth Proportional to 39,467.90, 59,203.89 and 19,739.79

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Solution

The fourth proportional to 39,467.90, 59,203.89 and 19,739.79 is: 29,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,467.90 : 59,203.89 = 19,739.79 : x
  2. Step 2: Convert to fraction form
    39,467.90/59,203.89 = 19,739.79/x
  3. Step 3: Cross multiply
    39,467.90x = 59,203.89 × 19,739.79
  4. Step 4: Simplify right side
    39,467.90x = 1,168,672,355.78
  5. Step 5: Solve for x
    x = 1,168,672,355.78/39,467.90
  6. Step 6: Final answer
    x = 29,610.71

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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.