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Finding the Fourth Proportional to 68,832.90, 94,987.88 and 38,617.68

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Solution

The fourth proportional to 68,832.90, 94,987.88 and 38,617.68 is: 53,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,832.90 : 94,987.88 = 38,617.68 : x
  2. Step 2: Convert to fraction form
    68,832.90/94,987.88 = 38,617.68/x
  3. Step 3: Cross multiply
    68,832.90x = 94,987.88 × 38,617.68
  4. Step 4: Simplify right side
    68,832.90x = 3,668,211,553.72
  5. Step 5: Solve for x
    x = 3,668,211,553.72/68,832.90
  6. Step 6: Final answer
    x = 53,291.54

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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.