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Finding the Fourth Proportional to 68,449.71, 94,457.84 and 38,234.55

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Solution

The fourth proportional to 68,449.71, 94,457.84 and 38,234.55 is: 52,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,449.71 : 94,457.84 = 38,234.55 : x
  2. Step 2: Convert to fraction form
    68,449.71/94,457.84 = 38,234.55/x
  3. Step 3: Cross multiply
    68,449.71x = 94,457.84 × 38,234.55
  4. Step 4: Simplify right side
    68,449.71x = 3,611,552,815.20
  5. Step 5: Solve for x
    x = 3,611,552,815.20/68,449.71
  6. Step 6: Final answer
    x = 52,762.13

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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.