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Finding the Fourth Proportional to 68,447.90, 94,448.77 and 38,229.37

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Solution

The fourth proportional to 68,447.90, 94,448.77 and 38,229.37 is: 52,751.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,447.90 : 94,448.77 = 38,229.37 : x
  2. Step 2: Convert to fraction form
    68,447.90/94,448.77 = 38,229.37/x
  3. Step 3: Cross multiply
    68,447.90x = 94,448.77 × 38,229.37
  4. Step 4: Simplify right side
    68,447.90x = 3,610,716,642.68
  5. Step 5: Solve for x
    x = 3,610,716,642.68/68,447.90
  6. Step 6: Final answer
    x = 52,751.31

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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.