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Finding the Fourth Proportional to 66,801.23, 100,048.07 and 38,651.47

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Solution

The fourth proportional to 66,801.23, 100,048.07 and 38,651.47 is: 57,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801.23 : 100,048.07 = 38,651.47 : x
  2. Step 2: Convert to fraction form
    66,801.23/100,048.07 = 38,651.47/x
  3. Step 3: Cross multiply
    66,801.23x = 100,048.07 × 38,651.47
  4. Step 4: Simplify right side
    66,801.23x = 3,867,004,736.33
  5. Step 5: Solve for x
    x = 3,867,004,736.33/66,801.23
  6. Step 6: Final answer
    x = 57,888.23

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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.