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Finding the Fourth Proportional to 74,509.92, 111,690.09 and 37,012.32

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Solution

The fourth proportional to 74,509.92, 111,690.09 and 37,012.32 is: 55,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,509.92 : 111,690.09 = 37,012.32 : x
  2. Step 2: Convert to fraction form
    74,509.92/111,690.09 = 37,012.32/x
  3. Step 3: Cross multiply
    74,509.92x = 111,690.09 × 37,012.32
  4. Step 4: Simplify right side
    74,509.92x = 4,133,909,351.91
  5. Step 5: Solve for x
    x = 4,133,909,351.91/74,509.92
  6. Step 6: Final answer
    x = 55,481.33

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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.