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Finding the Fourth Proportional to 55,380.92, 83,071.44 and 15,928.88

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Solution

The fourth proportional to 55,380.92, 83,071.44 and 15,928.88 is: 23,893.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,380.92 : 83,071.44 = 15,928.88 : x
  2. Step 2: Convert to fraction form
    55,380.92/83,071.44 = 15,928.88/x
  3. Step 3: Cross multiply
    55,380.92x = 83,071.44 × 15,928.88
  4. Step 4: Simplify right side
    55,380.92x = 1,323,234,999.19
  5. Step 5: Solve for x
    x = 1,323,234,999.19/55,380.92
  6. Step 6: Final answer
    x = 23,893.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.