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Finding the Fourth Proportional to 74,525.78, 111,805.94 and 39,006.39

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Solution

The fourth proportional to 74,525.78, 111,805.94 and 39,006.39 is: 58,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,525.78 : 111,805.94 = 39,006.39 : x
  2. Step 2: Convert to fraction form
    74,525.78/111,805.94 = 39,006.39/x
  3. Step 3: Cross multiply
    74,525.78x = 111,805.94 × 39,006.39
  4. Step 4: Simplify right side
    74,525.78x = 4,361,145,904.92
  5. Step 5: Solve for x
    x = 4,361,145,904.92/74,525.78
  6. Step 6: Final answer
    x = 58,518.63

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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.