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Finding the Fourth Proportional to 68,003.12, 93,847.12 and 37,788.32

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Solution

The fourth proportional to 68,003.12, 93,847.12 and 37,788.32 is: 52,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,003.12 : 93,847.12 = 37,788.32 : x
  2. Step 2: Convert to fraction form
    68,003.12/93,847.12 = 37,788.32/x
  3. Step 3: Cross multiply
    68,003.12x = 93,847.12 × 37,788.32
  4. Step 4: Simplify right side
    68,003.12x = 3,546,325,001.64
  5. Step 5: Solve for x
    x = 3,546,325,001.64/68,003.12
  6. Step 6: Final answer
    x = 52,149.45

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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.