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Finding the Fourth Proportional to 68,625.60, 94,695.32 and 38,412.60

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Solution

The fourth proportional to 68,625.60, 94,695.32 and 38,412.60 is: 53,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,625.60 : 94,695.32 = 38,412.60 : x
  2. Step 2: Convert to fraction form
    68,625.60/94,695.32 = 38,412.60/x
  3. Step 3: Cross multiply
    68,625.60x = 94,695.32 × 38,412.60
  4. Step 4: Simplify right side
    68,625.60x = 3,637,493,449.03
  5. Step 5: Solve for x
    x = 3,637,493,449.03/68,625.60
  6. Step 6: Final answer
    x = 53,004.91

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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.