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Finding the Fourth Proportional to 55,375.92, 76,446.18 and 34,166.88

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Solution

The fourth proportional to 55,375.92, 76,446.18 and 34,166.88 is: 47,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,375.92 : 76,446.18 = 34,166.88 : x
  2. Step 2: Convert to fraction form
    55,375.92/76,446.18 = 34,166.88/x
  3. Step 3: Cross multiply
    55,375.92x = 76,446.18 × 34,166.88
  4. Step 4: Simplify right side
    55,375.92x = 2,611,927,458.52
  5. Step 5: Solve for x
    x = 2,611,927,458.52/55,375.92
  6. Step 6: Final answer
    x = 47,167.21

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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.