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Finding the Fourth Proportional to 68,449.92, 94,459.89 and 38,235.69

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Solution

The fourth proportional to 68,449.92, 94,459.89 and 38,235.69 is: 52,764.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,449.92 : 94,459.89 = 38,235.69 : x
  2. Step 2: Convert to fraction form
    68,449.92/94,459.89 = 38,235.69/x
  3. Step 3: Cross multiply
    68,449.92x = 94,459.89 × 38,235.69
  4. Step 4: Simplify right side
    68,449.92x = 3,611,739,071.47
  5. Step 5: Solve for x
    x = 3,611,739,071.47/68,449.92
  6. Step 6: Final answer
    x = 52,764.69

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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.